Merge with trunk r41411
[blender.git] / source / blender / blenloader / intern / writefile.c
1 /*
2  * ***** BEGIN GPL LICENSE BLOCK *****
3  *
4  * This program is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public License
6  * as published by the Free Software Foundation; either version 2
7  * of the License, or (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software Foundation,
16  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
17  *
18  * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
19  * All rights reserved.
20  *
21  *
22  * Contributor(s): Blender Foundation
23  *
24  * ***** END GPL LICENSE BLOCK *****
25  */
26
27 /** \file blender/blenloader/intern/writefile.c
28  *  \ingroup blenloader
29  */
30
31
32 /*
33 FILEFORMAT: IFF-style structure  (but not IFF compatible!)
34
35 start file:
36         BLENDER_V100    12 bytes  (versie 1.00)
37                                         V = big endian, v = little endian
38                                         _ = 4 byte pointer, - = 8 byte pointer
39
40 datablocks:             also see struct BHead
41         <bh.code>                       4 chars
42         <bh.len>                        int,  len data after BHead
43         <bh.old>                        void,  old pointer
44         <bh.SDNAnr>                     int
45         <bh.nr>                         int, in case of array: amount of structs
46         data
47         ...
48         ...
49
50 Almost all data in Blender are structures. Each struct saved
51 gets a BHead header.  With BHead the struct can be linked again
52 and compared with StructDNA .
53
54 WRITE
55
56 Preferred writing order: (not really a must, but why would you do it random?)
57 Any case: direct data is ALWAYS after the lib block
58
59 (Local file data)
60 - for each LibBlock
61         - write LibBlock
62         - write associated direct data
63 (External file data)
64 - per library
65         - write library block
66         - per LibBlock
67                 - write the ID of LibBlock
68 - write TEST (128x128, blend file preview, optional)
69 - write FileGlobal (some global vars)
70 - write SDNA
71 - write USER if filename is ~/X.XX/config/startup.blend
72 */
73
74
75 #include <math.h>
76 #include <fcntl.h>
77 #include <stdio.h>
78 #include <string.h>
79 #include <stdlib.h>
80
81 #include "zlib.h"
82
83 #ifndef WIN32
84 #include <unistd.h>
85 #else
86 #include "winsock2.h"
87 #include <io.h>
88 #include <process.h> // for getpid
89 #include "BLI_winstuff.h"
90 #endif
91
92 #include "DNA_anim_types.h"
93 #include "DNA_armature_types.h"
94 #include "DNA_actuator_types.h"
95 #include "DNA_brush_types.h"
96 #include "DNA_camera_types.h"
97 #include "DNA_cloth_types.h"
98 #include "DNA_constraint_types.h"
99 #include "DNA_controller_types.h"
100 #include "DNA_dynamicpaint_types.h"
101 #include "DNA_genfile.h"
102 #include "DNA_group_types.h"
103 #include "DNA_gpencil_types.h"
104 #include "DNA_fileglobal_types.h"
105 #include "DNA_key_types.h"
106 #include "DNA_lattice_types.h"
107 #include "DNA_lamp_types.h"
108 #include "DNA_meta_types.h"
109 #include "DNA_mesh_types.h"
110 #include "DNA_meshdata_types.h"
111 #include "DNA_material_types.h"
112 #include "DNA_node_types.h"
113 #include "DNA_object_types.h"
114 #include "DNA_object_force.h"
115 #include "DNA_packedFile_types.h"
116 #include "DNA_particle_types.h"
117 #include "DNA_property_types.h"
118 #include "DNA_scene_types.h"
119 #include "DNA_sdna_types.h"
120 #include "DNA_sequence_types.h"
121 #include "DNA_sensor_types.h"
122 #include "DNA_smoke_types.h"
123 #include "DNA_space_types.h"
124 #include "DNA_screen_types.h"
125 #include "DNA_speaker_types.h"
126 #include "DNA_sound_types.h"
127 #include "DNA_text_types.h"
128 #include "DNA_view3d_types.h"
129 #include "DNA_vfont_types.h"
130 #include "DNA_world_types.h"
131 #include "DNA_windowmanager_types.h"
132
133 #include "MEM_guardedalloc.h" // MEM_freeN
134 #include "BLI_blenlib.h"
135 #include "BLI_linklist.h"
136 #include "BLI_bpath.h"
137 #include "BLI_math.h"
138 #include "BLI_utildefines.h"
139
140 #include "BKE_action.h"
141 #include "BKE_blender.h"
142 #include "BKE_curve.h"
143 #include "BKE_constraint.h"
144 #include "BKE_global.h" // for G
145 #include "BKE_library.h" // for  set_listbasepointers
146 #include "BKE_main.h"
147 #include "BKE_node.h"
148 #include "BKE_report.h"
149 #include "BKE_sequencer.h"
150 #include "BKE_utildefines.h"
151 #include "BKE_modifier.h"
152 #include "BKE_fcurve.h"
153 #include "BKE_pointcache.h"
154
155 #include "BLO_writefile.h"
156 #include "BLO_readfile.h"
157 #include "BLO_undofile.h"
158
159 #include "readfile.h"
160
161 #include <errno.h>
162
163 /* ********* my write, buffered writing with minimum size chunks ************ */
164
165 #define MYWRITE_BUFFER_SIZE     100000
166 #define MYWRITE_MAX_CHUNK       32768
167
168 typedef struct {
169         struct SDNA *sdna;
170
171         int file;
172         unsigned char *buf;
173         MemFile *compare, *current;
174         
175         int tot, count, error, memsize;
176 } WriteData;
177
178 static WriteData *writedata_new(int file)
179 {
180         WriteData *wd= MEM_callocN(sizeof(*wd), "writedata");
181
182                 /* XXX, see note about this in readfile.c, remove
183                  * once we have an xp lock - zr
184                  */
185
186         if (wd == NULL) return NULL;
187
188         wd->sdna= DNA_sdna_from_data(DNAstr, DNAlen, 0);
189
190         wd->file= file;
191
192         wd->buf= MEM_mallocN(MYWRITE_BUFFER_SIZE, "wd->buf");
193
194         return wd;
195 }
196
197 static void writedata_do_write(WriteData *wd, void *mem, int memlen)
198 {
199         if ((wd == NULL) || wd->error || (mem == NULL) || memlen < 1) return;
200         if (wd->error) return;
201
202         /* memory based save */
203         if(wd->current) {
204                 add_memfilechunk(NULL, wd->current, mem, memlen);
205         }
206         else {
207                 if (write(wd->file, mem, memlen) != memlen)
208                         wd->error= 1;
209                 
210         }
211 }
212
213 static void writedata_free(WriteData *wd)
214 {
215         DNA_sdna_free(wd->sdna);
216
217         MEM_freeN(wd->buf);
218         MEM_freeN(wd);
219 }
220
221 /***/
222
223 /**
224  * Low level WRITE(2) wrapper that buffers data
225  * @param adr Pointer to new chunk of data
226  * @param len Length of new chunk of data
227  * @warning Talks to other functions with global parameters
228  */
229  
230 #define MYWRITE_FLUSH           NULL
231
232 static void mywrite( WriteData *wd, void *adr, int len)
233 {
234         if (wd->error) return;
235
236         /* flush helps compression for undo-save */
237         if(adr==MYWRITE_FLUSH) {
238                 if(wd->count) {
239                         writedata_do_write(wd, wd->buf, wd->count);
240                         wd->count= 0;
241                 }
242                 return;
243         }
244
245         wd->tot+= len;
246         
247         /* if we have a single big chunk, write existing data in
248          * buffer and write out big chunk in smaller pieces */
249         if(len>MYWRITE_MAX_CHUNK) {
250                 if(wd->count) {
251                         writedata_do_write(wd, wd->buf, wd->count);
252                         wd->count= 0;
253                 }
254
255                 do {
256                         int writelen= MIN2(len, MYWRITE_MAX_CHUNK);
257                         writedata_do_write(wd, adr, writelen);
258                         adr = (char*)adr + writelen;
259                         len -= writelen;
260                 } while(len > 0);
261
262                 return;
263         }
264
265         /* if data would overflow buffer, write out the buffer */
266         if(len+wd->count>MYWRITE_BUFFER_SIZE-1) {
267                 writedata_do_write(wd, wd->buf, wd->count);
268                 wd->count= 0;
269         }
270
271         /* append data at end of buffer */
272         memcpy(&wd->buf[wd->count], adr, len);
273         wd->count+= len;
274 }
275
276 /**
277  * BeGiN initializer for mywrite
278  * @param file File descriptor
279  * @param write_flags Write parameters
280  * @warning Talks to other functions with global parameters
281  */
282 static WriteData *bgnwrite(int file, MemFile *compare, MemFile *current)
283 {
284         WriteData *wd= writedata_new(file);
285
286         if (wd == NULL) return NULL;
287
288         wd->compare= compare;
289         wd->current= current;
290         /* this inits comparing */
291         add_memfilechunk(compare, NULL, NULL, 0);
292         
293         return wd;
294 }
295
296 /**
297  * END the mywrite wrapper
298  * @return 1 if write failed
299  * @return unknown global variable otherwise
300  * @warning Talks to other functions with global parameters
301  */
302 static int endwrite(WriteData *wd)
303 {
304         int err;
305
306         if (wd->count) {
307                 writedata_do_write(wd, wd->buf, wd->count);
308                 wd->count= 0;
309         }
310         
311         err= wd->error;
312         writedata_free(wd);
313
314         return err;
315 }
316
317 /* ********** WRITE FILE ****************** */
318
319 static void writestruct(WriteData *wd, int filecode, const char *structname, int nr, void *adr)
320 {
321         BHead bh;
322         short *sp;
323
324         if(adr==NULL || nr==0) return;
325
326         /* init BHead */
327         bh.code= filecode;
328         bh.old= adr;
329         bh.nr= nr;
330
331         bh.SDNAnr= DNA_struct_find_nr(wd->sdna, structname);
332         if(bh.SDNAnr== -1) {
333                 printf("error: can't find SDNA code <%s>\n", structname);
334                 return;
335         }
336         sp= wd->sdna->structs[bh.SDNAnr];
337
338         bh.len= nr*wd->sdna->typelens[sp[0]];
339
340         if(bh.len==0) return;
341
342         mywrite(wd, &bh, sizeof(BHead));
343         mywrite(wd, adr, bh.len);
344 }
345
346 static void writedata(WriteData *wd, int filecode, int len, void *adr)  /* do not use for structs */
347 {
348         BHead bh;
349
350         if(adr==NULL) return;
351         if(len==0) return;
352
353         len+= 3;
354         len-= ( len % 4);
355
356         /* init BHead */
357         bh.code= filecode;
358         bh.old= adr;
359         bh.nr= 1;
360         bh.SDNAnr= 0;
361         bh.len= len;
362
363         mywrite(wd, &bh, sizeof(BHead));
364         if(len) mywrite(wd, adr, len);
365 }
366
367 /* *************** writing some direct data structs used in more code parts **************** */
368 /*These functions are used by blender's .blend system for file saving/loading.*/
369 void IDP_WriteProperty_OnlyData(IDProperty *prop, void *wd);
370 void IDP_WriteProperty(IDProperty *prop, void *wd);
371
372 static void IDP_WriteArray(IDProperty *prop, void *wd)
373 {
374         /*REMEMBER to set totalen to len in the linking code!!*/
375         if (prop->data.pointer) {
376                 writedata(wd, DATA, MEM_allocN_len(prop->data.pointer), prop->data.pointer);
377
378                 if(prop->subtype == IDP_GROUP) {
379                         IDProperty **array= prop->data.pointer;
380                         int a;
381
382                         for(a=0; a<prop->len; a++)
383                                 IDP_WriteProperty(array[a], wd);
384                 }
385         }
386 }
387
388 static void IDP_WriteIDPArray(IDProperty *prop, void *wd)
389 {
390         /*REMEMBER to set totalen to len in the linking code!!*/
391         if (prop->data.pointer) {
392                 IDProperty *array = prop->data.pointer;
393                 int a;
394
395                 writestruct(wd, DATA, "IDProperty", prop->len, array);
396
397                 for(a=0; a<prop->len; a++)
398                         IDP_WriteProperty_OnlyData(&array[a], wd);
399         }
400 }
401
402 static void IDP_WriteString(IDProperty *prop, void *wd)
403 {
404         /*REMEMBER to set totalen to len in the linking code!!*/
405         writedata(wd, DATA, prop->len+1, prop->data.pointer);
406 }
407
408 static void IDP_WriteGroup(IDProperty *prop, void *wd)
409 {
410         IDProperty *loop;
411
412         for (loop=prop->data.group.first; loop; loop=loop->next) {
413                 IDP_WriteProperty(loop, wd);
414         }
415 }
416
417 /* Functions to read/write ID Properties */
418 void IDP_WriteProperty_OnlyData(IDProperty *prop, void *wd)
419 {
420         switch (prop->type) {
421                 case IDP_GROUP:
422                         IDP_WriteGroup(prop, wd);
423                         break;
424                 case IDP_STRING:
425                         IDP_WriteString(prop, wd);
426                         break;
427                 case IDP_ARRAY:
428                         IDP_WriteArray(prop, wd);
429                         break;
430                 case IDP_IDPARRAY:
431                         IDP_WriteIDPArray(prop, wd);
432                         break;
433         }
434 }
435
436 void IDP_WriteProperty(IDProperty *prop, void *wd)
437 {
438         writestruct(wd, DATA, "IDProperty", 1, prop);
439         IDP_WriteProperty_OnlyData(prop, wd);
440 }
441
442 static void write_fmodifiers(WriteData *wd, ListBase *fmodifiers)
443 {
444         FModifier *fcm;
445         
446         /* Modifiers */
447         for (fcm= fmodifiers->first; fcm; fcm= fcm->next) {
448                 FModifierTypeInfo *fmi= fmodifier_get_typeinfo(fcm);
449                 
450                 /* Write the specific data */
451                 if (fmi && fcm->data) {
452                         /* firstly, just write the plain fmi->data struct */
453                         writestruct(wd, DATA, fmi->structName, 1, fcm->data);
454                         
455                         /* do any modifier specific stuff */
456                         switch (fcm->type) {
457                                 case FMODIFIER_TYPE_GENERATOR:
458                                 {
459                                         FMod_Generator *data= (FMod_Generator *)fcm->data;
460                                         
461                                         /* write coefficients array */
462                                         if (data->coefficients)
463                                                 writedata(wd, DATA, sizeof(float)*(data->arraysize), data->coefficients);
464                                 }
465                                         break;
466                                 case FMODIFIER_TYPE_ENVELOPE:
467                                 {
468                                         FMod_Envelope *data= (FMod_Envelope *)fcm->data;
469                                         
470                                         /* write envelope data */
471                                         if (data->data)
472                                                 writestruct(wd, DATA, "FCM_EnvelopeData", data->totvert, data->data);
473                                 }
474                                         break;
475                                 case FMODIFIER_TYPE_PYTHON:
476                                 {
477                                         FMod_Python *data = (FMod_Python *)fcm->data;
478                                         
479                                         /* Write ID Properties -- and copy this comment EXACTLY for easy finding
480                                          of library blocks that implement this.*/
481                                         IDP_WriteProperty(data->prop, wd);
482                                 }
483                                         break;
484                         }
485                 }
486                 
487                 /* Write the modifier */
488                 writestruct(wd, DATA, "FModifier", 1, fcm);
489         }
490 }
491
492 static void write_fcurves(WriteData *wd, ListBase *fcurves)
493 {
494         FCurve *fcu;
495         
496         for (fcu=fcurves->first; fcu; fcu=fcu->next) {
497                 /* F-Curve */
498                 writestruct(wd, DATA, "FCurve", 1, fcu);
499                 
500                 /* curve data */
501                 if (fcu->bezt)          
502                         writestruct(wd, DATA, "BezTriple", fcu->totvert, fcu->bezt);
503                 if (fcu->fpt)
504                         writestruct(wd, DATA, "FPoint", fcu->totvert, fcu->fpt);
505                         
506                 if (fcu->rna_path)
507                         writedata(wd, DATA, strlen(fcu->rna_path)+1, fcu->rna_path);
508                 
509                 /* driver data */
510                 if (fcu->driver) {
511                         ChannelDriver *driver= fcu->driver;
512                         DriverVar *dvar;
513                         
514                         writestruct(wd, DATA, "ChannelDriver", 1, driver);
515                         
516                         /* variables */
517                         for (dvar= driver->variables.first; dvar; dvar= dvar->next) {
518                                 writestruct(wd, DATA, "DriverVar", 1, dvar);
519                                 
520                                 DRIVER_TARGETS_USED_LOOPER(dvar)
521                                 {
522                                         if (dtar->rna_path)
523                                                 writedata(wd, DATA, strlen(dtar->rna_path)+1, dtar->rna_path);
524                                 }
525                                 DRIVER_TARGETS_LOOPER_END
526                         }
527                 }
528                 
529                 /* write F-Modifiers */
530                 write_fmodifiers(wd, &fcu->modifiers);
531         }
532 }
533
534 static void write_actions(WriteData *wd, ListBase *idbase)
535 {
536         bAction *act;
537         bActionGroup *grp;
538         TimeMarker *marker;
539         
540         for(act=idbase->first; act; act= act->id.next) {
541                 if (act->id.us>0 || wd->current) {
542                         writestruct(wd, ID_AC, "bAction", 1, act);
543                         if (act->id.properties) IDP_WriteProperty(act->id.properties, wd);
544                         
545                         write_fcurves(wd, &act->curves);
546                         
547                         for (grp=act->groups.first; grp; grp=grp->next) {
548                                 writestruct(wd, DATA, "bActionGroup", 1, grp);
549                         }
550                         
551                         for (marker=act->markers.first; marker; marker=marker->next) {
552                                 writestruct(wd, DATA, "TimeMarker", 1, marker);
553                         }
554                 }
555         }
556         
557         /* flush helps the compression for undo-save */
558         mywrite(wd, MYWRITE_FLUSH, 0);
559 }
560
561 static void write_keyingsets(WriteData *wd, ListBase *list)
562 {
563         KeyingSet *ks;
564         KS_Path *ksp;
565         
566         for (ks= list->first; ks; ks= ks->next) {
567                 /* KeyingSet */
568                 writestruct(wd, DATA, "KeyingSet", 1, ks);
569                 
570                 /* Paths */
571                 for (ksp= ks->paths.first; ksp; ksp= ksp->next) {
572                         /* Path */
573                         writestruct(wd, DATA, "KS_Path", 1, ksp);
574                         
575                         if (ksp->rna_path)
576                                 writedata(wd, DATA, strlen(ksp->rna_path)+1, ksp->rna_path);
577                 }
578         }
579 }
580
581 static void write_nlastrips(WriteData *wd, ListBase *strips)
582 {
583         NlaStrip *strip;
584         
585         for (strip= strips->first; strip; strip= strip->next) {
586                 /* write the strip first */
587                 writestruct(wd, DATA, "NlaStrip", 1, strip);
588                 
589                 /* write the strip's F-Curves and modifiers */
590                 write_fcurves(wd, &strip->fcurves);
591                 write_fmodifiers(wd, &strip->modifiers);
592                 
593                 /* write the strip's children */
594                 write_nlastrips(wd, &strip->strips);
595         }
596 }
597
598 static void write_nladata(WriteData *wd, ListBase *nlabase)
599 {
600         NlaTrack *nlt;
601         
602         /* write all the tracks */
603         for (nlt= nlabase->first; nlt; nlt= nlt->next) {
604                 /* write the track first */
605                 writestruct(wd, DATA, "NlaTrack", 1, nlt);
606                 
607                 /* write the track's strips */
608                 write_nlastrips(wd, &nlt->strips);
609         }
610 }
611
612 static void write_animdata(WriteData *wd, AnimData *adt)
613 {
614         AnimOverride *aor;
615         
616         /* firstly, just write the AnimData block */
617         writestruct(wd, DATA, "AnimData", 1, adt);
618         
619         /* write drivers */
620         write_fcurves(wd, &adt->drivers);
621         
622         /* write overrides */
623         // FIXME: are these needed?
624         for (aor= adt->overrides.first; aor; aor= aor->next) {
625                 /* overrides consist of base data + rna_path */
626                 writestruct(wd, DATA, "AnimOverride", 1, aor);
627                 writedata(wd, DATA, strlen(aor->rna_path)+1, aor->rna_path);
628         }
629         
630         // TODO write the remaps (if they are needed)
631         
632         /* write NLA data */
633         write_nladata(wd, &adt->nla_tracks);
634 }
635
636 static void write_curvemapping(WriteData *wd, CurveMapping *cumap)
637 {
638         int a;
639         
640         writestruct(wd, DATA, "CurveMapping", 1, cumap);
641         for(a=0; a<CM_TOT; a++)
642                 writestruct(wd, DATA, "CurveMapPoint", cumap->cm[a].totpoint, cumap->cm[a].curve);
643 }
644
645 static void write_node_socket(WriteData *wd, bNodeSocket *sock)
646 {
647         bNodeSocketType *stype= ntreeGetSocketType(sock->type);
648
649         /* forward compatibility code, so older blenders still open */
650         sock->stack_type = 1;
651
652         if(sock->default_value) {
653                 bNodeSocketValueFloat *valfloat;
654                 bNodeSocketValueVector *valvector;
655                 bNodeSocketValueRGBA *valrgba;
656                 
657                 switch (sock->type) {
658                 case SOCK_FLOAT:
659                         valfloat = sock->default_value;
660                         sock->ns.vec[0] = valfloat->value;
661                         sock->ns.min = valfloat->min;
662                         sock->ns.max = valfloat->max;
663                         break;
664                 case SOCK_VECTOR:
665                         valvector = sock->default_value;
666                         copy_v3_v3(sock->ns.vec, valvector->value);
667                         sock->ns.min = valvector->min;
668                         sock->ns.max = valvector->max;
669                         break;
670                 case SOCK_RGBA:
671                         valrgba = sock->default_value;
672                         copy_v4_v4(sock->ns.vec, valrgba->value);
673                         sock->ns.min = 0.0f;
674                         sock->ns.max = 1.0f;
675                         break;
676                 }
677         }
678
679         /* actual socket writing */
680         writestruct(wd, DATA, "bNodeSocket", 1, sock);
681         if (sock->default_value)
682                 writestruct(wd, DATA, stype->value_structname, 1, sock->default_value);
683 }
684
685 /* this is only direct data, tree itself should have been written */
686 static void write_nodetree(WriteData *wd, bNodeTree *ntree)
687 {
688         bNode *node;
689         bNodeSocket *sock;
690         bNodeLink *link;
691         
692         /* for link_list() speed, we write per list */
693         
694         if(ntree->adt) write_animdata(wd, ntree->adt);
695         
696         for(node= ntree->nodes.first; node; node= node->next)
697                 writestruct(wd, DATA, "bNode", 1, node);
698
699         for(node= ntree->nodes.first; node; node= node->next) {
700                 for(sock= node->inputs.first; sock; sock= sock->next)
701                         write_node_socket(wd, sock);
702                 for(sock= node->outputs.first; sock; sock= sock->next)
703                         write_node_socket(wd, sock);
704
705                 
706                 if(node->storage && node->type!=NODE_DYNAMIC) {
707                         /* could be handlerized at some point, now only 1 exception still */
708                         if(ntree->type==NTREE_SHADER && (node->type==SH_NODE_CURVE_VEC || node->type==SH_NODE_CURVE_RGB))
709                                 write_curvemapping(wd, node->storage);
710                         else if(ntree->type==NTREE_COMPOSIT && ELEM4(node->type, CMP_NODE_TIME, CMP_NODE_CURVE_VEC, CMP_NODE_CURVE_RGB, CMP_NODE_HUECORRECT))
711                                 write_curvemapping(wd, node->storage);
712                         else if(ntree->type==NTREE_TEXTURE && (node->type==TEX_NODE_CURVE_RGB || node->type==TEX_NODE_CURVE_TIME) )
713                                 write_curvemapping(wd, node->storage);
714                         else
715                                 writestruct(wd, DATA, node->typeinfo->storagename, 1, node->storage);
716                 }
717         }
718         
719         for(link= ntree->links.first; link; link= link->next)
720                 writestruct(wd, DATA, "bNodeLink", 1, link);
721         
722         /* external sockets */
723         for(sock= ntree->inputs.first; sock; sock= sock->next)
724                 write_node_socket(wd, sock);
725         for(sock= ntree->outputs.first; sock; sock= sock->next)
726                 write_node_socket(wd, sock);
727 }
728
729 static void current_screen_compat(Main *mainvar, bScreen **screen)
730 {
731         wmWindowManager *wm;
732         wmWindow *window;
733
734         /* find a global current screen in the first open window, to have
735          * a reasonable default for reading in older versions */
736         wm= mainvar->wm.first;
737         window= (wm)? wm->windows.first: NULL;
738         *screen= (window)? window->screen: NULL;
739 }
740
741 static void write_renderinfo(WriteData *wd, Main *mainvar)              /* for renderdeamon */
742 {
743         bScreen *curscreen;
744         Scene *sce;
745         int data[8];
746
747         /* XXX in future, handle multiple windows with multiple screnes? */
748         current_screen_compat(mainvar, &curscreen);
749
750         for(sce= mainvar->scene.first; sce; sce= sce->id.next) {
751                 if(sce->id.lib==NULL  && ( sce==curscreen->scene || (sce->r.scemode & R_BG_RENDER)) ) {
752                         data[0]= sce->r.sfra;
753                         data[1]= sce->r.efra;
754
755                         memset(data+2, 0, sizeof(int)*6);
756                         BLI_strncpy((char *)(data+2), sce->id.name+2, sizeof(sce->id.name)-2);
757
758                         writedata(wd, REND, 32, data);
759                 }
760         }
761 }
762
763 static void write_keymapitem(WriteData *wd, wmKeyMapItem *kmi)
764 {
765         writestruct(wd, DATA, "wmKeyMapItem", 1, kmi);
766         if(kmi->properties)
767                 IDP_WriteProperty(kmi->properties, wd);
768 }
769
770 static void write_userdef(WriteData *wd)
771 {
772         bTheme *btheme;
773         wmKeyMap *keymap;
774         wmKeyMapItem *kmi;
775         wmKeyMapDiffItem *kmdi;
776         bAddon *bext;
777         uiStyle *style;
778         
779         writestruct(wd, USER, "UserDef", 1, &U);
780
781         for(btheme= U.themes.first; btheme; btheme=btheme->next)
782                 writestruct(wd, DATA, "bTheme", 1, btheme);
783
784         for(keymap= U.user_keymaps.first; keymap; keymap=keymap->next) {
785                 writestruct(wd, DATA, "wmKeyMap", 1, keymap);
786
787                 for(kmdi=keymap->diff_items.first; kmdi; kmdi=kmdi->next) {
788                         writestruct(wd, DATA, "wmKeyMapDiffItem", 1, kmdi);
789                         if(kmdi->remove_item)
790                                 write_keymapitem(wd, kmdi->remove_item);
791                         if(kmdi->add_item)
792                                 write_keymapitem(wd, kmdi->add_item);
793                 }
794
795                 for(kmi=keymap->items.first; kmi; kmi=kmi->next)
796                         write_keymapitem(wd, kmi);
797         }
798
799         for(bext= U.addons.first; bext; bext=bext->next)
800                 writestruct(wd, DATA, "bAddon", 1, bext);
801         
802         for(style= U.uistyles.first; style; style= style->next) {
803                 writestruct(wd, DATA, "uiStyle", 1, style);
804         }
805 }
806
807 static void write_boid_state(WriteData *wd, BoidState *state)
808 {
809         BoidRule *rule = state->rules.first;
810         //BoidCondition *cond = state->conditions.first;
811
812         writestruct(wd, DATA, "BoidState", 1, state);
813
814         for(; rule; rule=rule->next) {
815                 switch(rule->type) {
816                         case eBoidRuleType_Goal:
817                         case eBoidRuleType_Avoid:
818                                 writestruct(wd, DATA, "BoidRuleGoalAvoid", 1, rule);
819                                 break;
820                         case eBoidRuleType_AvoidCollision:
821                                 writestruct(wd, DATA, "BoidRuleAvoidCollision", 1, rule);
822                                 break;
823                         case eBoidRuleType_FollowLeader:
824                                 writestruct(wd, DATA, "BoidRuleFollowLeader", 1, rule);
825                                 break;
826                         case eBoidRuleType_AverageSpeed:
827                                 writestruct(wd, DATA, "BoidRuleAverageSpeed", 1, rule);
828                                 break;
829                         case eBoidRuleType_Fight:
830                                 writestruct(wd, DATA, "BoidRuleFight", 1, rule);
831                                 break;
832                         default:
833                                 writestruct(wd, DATA, "BoidRule", 1, rule);
834                                 break;
835                 }
836         }
837         //for(; cond; cond=cond->next)
838         //      writestruct(wd, DATA, "BoidCondition", 1, cond);
839 }
840
841 /* update this also to readfile.c */
842 static const char *ptcache_data_struct[] = {
843         "", // BPHYS_DATA_INDEX
844         "", // BPHYS_DATA_LOCATION
845         "", // BPHYS_DATA_VELOCITY
846         "", // BPHYS_DATA_ROTATION
847         "", // BPHYS_DATA_AVELOCITY / BPHYS_DATA_XCONST */
848         "", // BPHYS_DATA_SIZE:
849         "", // BPHYS_DATA_TIMES:        
850         "BoidData" // case BPHYS_DATA_BOIDS:
851 };
852 static const char *ptcache_extra_struct[] = {
853         "",
854         "ParticleSpring"
855 };
856 static void write_pointcaches(WriteData *wd, ListBase *ptcaches)
857 {
858         PointCache *cache = ptcaches->first;
859         int i;
860
861         for(; cache; cache=cache->next) {
862                 writestruct(wd, DATA, "PointCache", 1, cache);
863
864                 if((cache->flag & PTCACHE_DISK_CACHE)==0) {
865                         PTCacheMem *pm = cache->mem_cache.first;
866
867                         for(; pm; pm=pm->next) {
868                                 PTCacheExtra *extra = pm->extradata.first;
869
870                                 writestruct(wd, DATA, "PTCacheMem", 1, pm);
871                                 
872                                 for(i=0; i<BPHYS_TOT_DATA; i++) {
873                                         if(pm->data[i] && pm->data_types & (1<<i)) {
874                                                 if(ptcache_data_struct[i][0]=='\0')
875                                                         writedata(wd, DATA, MEM_allocN_len(pm->data[i]), pm->data[i]);
876                                                 else
877                                                         writestruct(wd, DATA, ptcache_data_struct[i], pm->totpoint, pm->data[i]);
878                                         }
879                                 }
880
881                                 for(; extra; extra=extra->next) {
882                                         if(ptcache_extra_struct[extra->type][0]=='\0')
883                                                 continue;
884                                         writestruct(wd, DATA, "PTCacheExtra", 1, extra);
885                                         writestruct(wd, DATA, ptcache_extra_struct[extra->type], extra->totdata, extra->data);
886                                 }
887                         }
888                 }
889         }
890 }
891 static void write_particlesettings(WriteData *wd, ListBase *idbase)
892 {
893         ParticleSettings *part;
894         ParticleDupliWeight *dw;
895         GroupObject *go;
896         int a;
897
898         part= idbase->first;
899         while(part) {
900                 if(part->id.us>0 || wd->current) {
901                         /* write LibData */
902                         writestruct(wd, ID_PA, "ParticleSettings", 1, part);
903                         if (part->id.properties) IDP_WriteProperty(part->id.properties, wd);
904                         if (part->adt) write_animdata(wd, part->adt);
905                         writestruct(wd, DATA, "PartDeflect", 1, part->pd);
906                         writestruct(wd, DATA, "PartDeflect", 1, part->pd2);
907                         writestruct(wd, DATA, "EffectorWeights", 1, part->effector_weights);
908
909                         dw = part->dupliweights.first;
910                         for(; dw; dw=dw->next) {
911                                 /* update indices */
912                                 dw->index = 0;
913                                 if(part->dup_group) { /* can be NULL if lining fails or set to None */
914                                         go = part->dup_group->gobject.first;
915                                         while(go && go->ob != dw->ob) {
916                                                 go=go->next;
917                                                 dw->index++;
918                                         }
919                                 }
920                                 writestruct(wd, DATA, "ParticleDupliWeight", 1, dw);
921                         }
922
923                         if(part->boids && part->phystype == PART_PHYS_BOIDS) {
924                                 BoidState *state = part->boids->states.first;
925
926                                 writestruct(wd, DATA, "BoidSettings", 1, part->boids);
927
928                                 for(; state; state=state->next)
929                                         write_boid_state(wd, state);
930                         }
931                         if(part->fluid && part->phystype == PART_PHYS_FLUID){
932                                 writestruct(wd, DATA, "SPHFluidSettings", 1, part->fluid); 
933                         }
934
935                         for(a=0; a<MAX_MTEX; a++) {
936                                 if(part->mtex[a]) writestruct(wd, DATA, "MTex", 1, part->mtex[a]);
937                         }
938                 }
939                 part= part->id.next;
940         }
941 }
942 static void write_particlesystems(WriteData *wd, ListBase *particles)
943 {
944         ParticleSystem *psys= particles->first;
945         ParticleTarget *pt;
946         int a;
947
948         for(; psys; psys=psys->next) {
949                 writestruct(wd, DATA, "ParticleSystem", 1, psys);
950
951                 if(psys->particles) {
952                         writestruct(wd, DATA, "ParticleData", psys->totpart ,psys->particles);
953
954                         if(psys->particles->hair) {
955                                 ParticleData *pa = psys->particles;
956
957                                 for(a=0; a<psys->totpart; a++, pa++)
958                                         writestruct(wd, DATA, "HairKey", pa->totkey, pa->hair);
959                         }
960
961                         if(psys->particles->boid && psys->part->phystype == PART_PHYS_BOIDS)
962                                 writestruct(wd, DATA, "BoidParticle", psys->totpart, psys->particles->boid);
963
964                         if(psys->part->fluid && psys->part->phystype == PART_PHYS_FLUID && (psys->part->fluid->flag & SPH_VISCOELASTIC_SPRINGS))
965                                 writestruct(wd, DATA, "ParticleSpring", psys->tot_fluidsprings, psys->fluid_springs);
966                 }
967                 pt = psys->targets.first;
968                 for(; pt; pt=pt->next)
969                         writestruct(wd, DATA, "ParticleTarget", 1, pt);
970
971                 if(psys->child) writestruct(wd, DATA, "ChildParticle", psys->totchild ,psys->child);
972
973                 if(psys->clmd) {
974                         writestruct(wd, DATA, "ClothModifierData", 1, psys->clmd);
975                         writestruct(wd, DATA, "ClothSimSettings", 1, psys->clmd->sim_parms);
976                         writestruct(wd, DATA, "ClothCollSettings", 1, psys->clmd->coll_parms);
977                 }
978
979                 write_pointcaches(wd, &psys->ptcaches);
980         }
981 }
982
983 static void write_properties(WriteData *wd, ListBase *lb)
984 {
985         bProperty *prop;
986
987         prop= lb->first;
988         while(prop) {
989                 writestruct(wd, DATA, "bProperty", 1, prop);
990
991                 if(prop->poin && prop->poin != &prop->data)
992                         writedata(wd, DATA, MEM_allocN_len(prop->poin), prop->poin);
993
994                 prop= prop->next;
995         }
996 }
997
998 static void write_sensors(WriteData *wd, ListBase *lb)
999 {
1000         bSensor *sens;
1001
1002         sens= lb->first;
1003         while(sens) {
1004                 writestruct(wd, DATA, "bSensor", 1, sens);
1005
1006                 writedata(wd, DATA, sizeof(void *)*sens->totlinks, sens->links);
1007
1008                 switch(sens->type) {
1009                 case SENS_NEAR:
1010                         writestruct(wd, DATA, "bNearSensor", 1, sens->data);
1011                         break;
1012                 case SENS_MOUSE:
1013                         writestruct(wd, DATA, "bMouseSensor", 1, sens->data);
1014                         break;
1015                 case SENS_TOUCH:
1016                         writestruct(wd, DATA, "bTouchSensor", 1, sens->data);
1017                         break;
1018                 case SENS_KEYBOARD:
1019                         writestruct(wd, DATA, "bKeyboardSensor", 1, sens->data);
1020                         break;
1021                 case SENS_PROPERTY:
1022                         writestruct(wd, DATA, "bPropertySensor", 1, sens->data);
1023                         break;
1024                 case SENS_ARMATURE:
1025                         writestruct(wd, DATA, "bArmatureSensor", 1, sens->data);
1026                         break;
1027                 case SENS_ACTUATOR:
1028                         writestruct(wd, DATA, "bActuatorSensor", 1, sens->data);
1029                         break;
1030                 case SENS_DELAY:
1031                         writestruct(wd, DATA, "bDelaySensor", 1, sens->data);
1032                         break;
1033                 case SENS_COLLISION:
1034                         writestruct(wd, DATA, "bCollisionSensor", 1, sens->data);
1035                         break;
1036                 case SENS_RADAR:
1037                         writestruct(wd, DATA, "bRadarSensor", 1, sens->data);
1038                         break;
1039                 case SENS_RANDOM:
1040                         writestruct(wd, DATA, "bRandomSensor", 1, sens->data);
1041                         break;
1042                 case SENS_RAY:
1043                         writestruct(wd, DATA, "bRaySensor", 1, sens->data);
1044                         break;
1045                 case SENS_MESSAGE:
1046                         writestruct(wd, DATA, "bMessageSensor", 1, sens->data);
1047                         break;
1048                 case SENS_JOYSTICK:
1049                         writestruct(wd, DATA, "bJoystickSensor", 1, sens->data);
1050                         break;
1051                 default:
1052                         ; /* error: don't know how to write this file */
1053                 }
1054
1055                 sens= sens->next;
1056         }
1057 }
1058
1059 static void write_controllers(WriteData *wd, ListBase *lb)
1060 {
1061         bController *cont;
1062
1063         cont= lb->first;
1064         while(cont) {
1065                 writestruct(wd, DATA, "bController", 1, cont);
1066
1067                 writedata(wd, DATA, sizeof(void *)*cont->totlinks, cont->links);
1068
1069                 switch(cont->type) {
1070                 case CONT_EXPRESSION:
1071                         writestruct(wd, DATA, "bExpressionCont", 1, cont->data);
1072                         break;
1073                 case CONT_PYTHON:
1074                         writestruct(wd, DATA, "bPythonCont", 1, cont->data);
1075                         break;
1076                 default:
1077                         ; /* error: don't know how to write this file */
1078                 }
1079
1080                 cont= cont->next;
1081         }
1082 }
1083
1084 static void write_actuators(WriteData *wd, ListBase *lb)
1085 {
1086         bActuator *act;
1087
1088         act= lb->first;
1089         while(act) {
1090                 writestruct(wd, DATA, "bActuator", 1, act);
1091
1092                 switch(act->type) {
1093                 case ACT_ACTION:
1094                 case ACT_SHAPEACTION:
1095                         writestruct(wd, DATA, "bActionActuator", 1, act->data);
1096                         break;
1097                 case ACT_SOUND:
1098                         writestruct(wd, DATA, "bSoundActuator", 1, act->data);
1099                         break;
1100                 case ACT_OBJECT:
1101                         writestruct(wd, DATA, "bObjectActuator", 1, act->data);
1102                         break;
1103                 case ACT_IPO:
1104                         writestruct(wd, DATA, "bIpoActuator", 1, act->data);
1105                         break;
1106                 case ACT_PROPERTY:
1107                         writestruct(wd, DATA, "bPropertyActuator", 1, act->data);
1108                         break;
1109                 case ACT_CAMERA:
1110                         writestruct(wd, DATA, "bCameraActuator", 1, act->data);
1111                         break;
1112                 case ACT_CONSTRAINT:
1113                         writestruct(wd, DATA, "bConstraintActuator", 1, act->data);
1114                         break;
1115                 case ACT_EDIT_OBJECT:
1116                         writestruct(wd, DATA, "bEditObjectActuator", 1, act->data);
1117                         break;
1118                 case ACT_SCENE:
1119                         writestruct(wd, DATA, "bSceneActuator", 1, act->data);
1120                         break;
1121                 case ACT_GROUP:
1122                         writestruct(wd, DATA, "bGroupActuator", 1, act->data);
1123                         break;
1124                 case ACT_RANDOM:
1125                         writestruct(wd, DATA, "bRandomActuator", 1, act->data);
1126                         break;
1127                 case ACT_MESSAGE:
1128                         writestruct(wd, DATA, "bMessageActuator", 1, act->data);
1129                         break;
1130                 case ACT_GAME:
1131                         writestruct(wd, DATA, "bGameActuator", 1, act->data);
1132                         break;
1133                 case ACT_VISIBILITY:
1134                         writestruct(wd, DATA, "bVisibilityActuator", 1, act->data);
1135                         break;
1136                 case ACT_2DFILTER:
1137                         writestruct(wd, DATA, "bTwoDFilterActuator", 1, act->data);
1138                         break;
1139                 case ACT_PARENT:
1140                         writestruct(wd, DATA, "bParentActuator", 1, act->data);
1141                         break;
1142                 case ACT_STATE:
1143                         writestruct(wd, DATA, "bStateActuator", 1, act->data);
1144                         break;
1145                 case ACT_ARMATURE:
1146                         writestruct(wd, DATA, "bArmatureActuator", 1, act->data);
1147                         break;
1148                 case ACT_STEERING:
1149                         writestruct(wd, DATA, "bSteeringActuator", 1, act->data);
1150                         break;
1151                 default:
1152                         ; /* error: don't know how to write this file */
1153                 }
1154
1155                 act= act->next;
1156         }
1157 }
1158
1159 static void write_motionpath(WriteData *wd, bMotionPath *mpath)
1160 {
1161         /* sanity checks */
1162         if (mpath == NULL)
1163                 return;
1164         
1165         /* firstly, just write the motionpath struct */
1166         writestruct(wd, DATA, "bMotionPath", 1, mpath);
1167         
1168         /* now write the array of data */
1169         writestruct(wd, DATA, "bMotionPathVert", mpath->length, mpath->points);
1170 }
1171
1172 static void write_constraints(WriteData *wd, ListBase *conlist)
1173 {
1174         bConstraint *con;
1175
1176         for (con=conlist->first; con; con=con->next) {
1177                 bConstraintTypeInfo *cti= constraint_get_typeinfo(con);
1178                 
1179                 /* Write the specific data */
1180                 if (cti && con->data) {
1181                         /* firstly, just write the plain con->data struct */
1182                         writestruct(wd, DATA, cti->structName, 1, con->data);
1183                         
1184                         /* do any constraint specific stuff */
1185                         switch (con->type) {
1186                                 case CONSTRAINT_TYPE_PYTHON:
1187                                 {
1188                                         bPythonConstraint *data = (bPythonConstraint *)con->data;
1189                                         bConstraintTarget *ct;
1190                                         
1191                                         /* write targets */
1192                                         for (ct= data->targets.first; ct; ct= ct->next)
1193                                                 writestruct(wd, DATA, "bConstraintTarget", 1, ct);
1194                                         
1195                                         /* Write ID Properties -- and copy this comment EXACTLY for easy finding
1196                                          of library blocks that implement this.*/
1197                                         IDP_WriteProperty(data->prop, wd);
1198                                 }
1199                                         break;
1200                                 case CONSTRAINT_TYPE_SPLINEIK: 
1201                                 {
1202                                         bSplineIKConstraint *data= (bSplineIKConstraint*)con->data;
1203                                         
1204                                         /* write points array */
1205                                         writedata(wd, DATA, sizeof(float)*(data->numpoints), data->points);
1206                                 }
1207                                         break;
1208                         }
1209                 }
1210                 
1211                 /* Write the constraint */
1212                 writestruct(wd, DATA, "bConstraint", 1, con);
1213         }
1214 }
1215
1216 static void write_pose(WriteData *wd, bPose *pose)
1217 {
1218         bPoseChannel *chan;
1219         bActionGroup *grp;
1220
1221         /* Write each channel */
1222         if (!pose)
1223                 return;
1224
1225         /* Write channels */
1226         for (chan=pose->chanbase.first; chan; chan=chan->next) {
1227                 /* Write ID Properties -- and copy this comment EXACTLY for easy finding
1228                  of library blocks that implement this.*/
1229                 if (chan->prop)
1230                         IDP_WriteProperty(chan->prop, wd);
1231                 
1232                 write_constraints(wd, &chan->constraints);
1233                 
1234                 write_motionpath(wd, chan->mpath);
1235                 
1236                 /* prevent crashes with autosave, when a bone duplicated in editmode has not yet been assigned to its posechannel */
1237                 if (chan->bone) 
1238                         chan->selectflag= chan->bone->flag & BONE_SELECTED; /* gets restored on read, for library armatures */
1239                 
1240                 writestruct(wd, DATA, "bPoseChannel", 1, chan);
1241         }
1242         
1243         /* Write groups */
1244         for (grp=pose->agroups.first; grp; grp=grp->next) 
1245                 writestruct(wd, DATA, "bActionGroup", 1, grp);
1246
1247         /* write IK param */
1248         if (pose->ikparam) {
1249                 char *structname = (char *)get_ikparam_name(pose);
1250                 if (structname)
1251                         writestruct(wd, DATA, structname, 1, pose->ikparam);
1252         }
1253
1254         /* Write this pose */
1255         writestruct(wd, DATA, "bPose", 1, pose);
1256
1257 }
1258
1259 static void write_defgroups(WriteData *wd, ListBase *defbase)
1260 {
1261         bDeformGroup    *defgroup;
1262
1263         for (defgroup=defbase->first; defgroup; defgroup=defgroup->next)
1264                 writestruct(wd, DATA, "bDeformGroup", 1, defgroup);
1265 }
1266
1267 static void write_modifiers(WriteData *wd, ListBase *modbase)
1268 {
1269         ModifierData *md;
1270
1271         if (modbase == NULL) return;
1272         for (md=modbase->first; md; md= md->next) {
1273                 ModifierTypeInfo *mti = modifierType_getInfo(md->type);
1274                 if (mti == NULL) return;
1275                 
1276                 writestruct(wd, DATA, mti->structName, 1, md);
1277                         
1278                 if (md->type==eModifierType_Hook) {
1279                         HookModifierData *hmd = (HookModifierData*) md;
1280                         
1281                         writedata(wd, DATA, sizeof(int)*hmd->totindex, hmd->indexar);
1282                 }
1283                 else if(md->type==eModifierType_Cloth) {
1284                         ClothModifierData *clmd = (ClothModifierData*) md;
1285                         
1286                         writestruct(wd, DATA, "ClothSimSettings", 1, clmd->sim_parms);
1287                         writestruct(wd, DATA, "ClothCollSettings", 1, clmd->coll_parms);
1288                         writestruct(wd, DATA, "EffectorWeights", 1, clmd->sim_parms->effector_weights);
1289                         write_pointcaches(wd, &clmd->ptcaches);
1290                 } 
1291                 else if(md->type==eModifierType_Smoke) {
1292                         SmokeModifierData *smd = (SmokeModifierData*) md;
1293                         
1294                         if(smd->type & MOD_SMOKE_TYPE_DOMAIN)
1295                         {
1296                                 if(smd->domain)
1297                                 {
1298                                         write_pointcaches(wd, &(smd->domain->ptcaches[0]));
1299
1300                                         /* create fake pointcache so that old blender versions can read it */
1301                                         smd->domain->point_cache[1] = BKE_ptcache_add(&smd->domain->ptcaches[1]);
1302                                         smd->domain->point_cache[1]->flag |= PTCACHE_DISK_CACHE|PTCACHE_FAKE_SMOKE;
1303                                         smd->domain->point_cache[1]->step = 1;
1304
1305                                         write_pointcaches(wd, &(smd->domain->ptcaches[1]));
1306                                 }
1307                                 
1308                                 writestruct(wd, DATA, "SmokeDomainSettings", 1, smd->domain);
1309
1310                                 if(smd->domain) {
1311                                         /* cleanup the fake pointcache */
1312                                         BKE_ptcache_free_list(&smd->domain->ptcaches[1]);
1313                                         smd->domain->point_cache[1] = NULL;
1314                                         
1315                                         writestruct(wd, DATA, "EffectorWeights", 1, smd->domain->effector_weights);
1316                                 }
1317                         }
1318                         else if(smd->type & MOD_SMOKE_TYPE_FLOW)
1319                                 writestruct(wd, DATA, "SmokeFlowSettings", 1, smd->flow);
1320                         else if(smd->type & MOD_SMOKE_TYPE_COLL)
1321                                 writestruct(wd, DATA, "SmokeCollSettings", 1, smd->coll);
1322                 } 
1323                 else if(md->type==eModifierType_Fluidsim) {
1324                         FluidsimModifierData *fluidmd = (FluidsimModifierData*) md;
1325                         
1326                         writestruct(wd, DATA, "FluidsimSettings", 1, fluidmd->fss);
1327                 }
1328                 else if(md->type==eModifierType_DynamicPaint) {
1329                         DynamicPaintModifierData *pmd = (DynamicPaintModifierData*) md;
1330                         
1331                         if(pmd->canvas)
1332                         {
1333                                 DynamicPaintSurface *surface;
1334                                 writestruct(wd, DATA, "DynamicPaintCanvasSettings", 1, pmd->canvas);
1335                                 
1336                                 /* write surfaces */
1337                                 for (surface=pmd->canvas->surfaces.first; surface; surface=surface->next)
1338                                         writestruct(wd, DATA, "DynamicPaintSurface", 1, surface);
1339                                 /* write caches and effector weights */
1340                                 for (surface=pmd->canvas->surfaces.first; surface; surface=surface->next) {
1341                                         write_pointcaches(wd, &(surface->ptcaches));
1342
1343                                         writestruct(wd, DATA, "EffectorWeights", 1, surface->effector_weights);
1344                                 }
1345                         }
1346                         if(pmd->brush)
1347                         {
1348                                 writestruct(wd, DATA, "DynamicPaintBrushSettings", 1, pmd->brush);
1349                                 writestruct(wd, DATA, "ColorBand", 1, pmd->brush->paint_ramp);
1350                                 writestruct(wd, DATA, "ColorBand", 1, pmd->brush->vel_ramp);
1351                         }
1352                 } 
1353                 else if (md->type==eModifierType_Collision) {
1354                         
1355                         /*
1356                         CollisionModifierData *collmd = (CollisionModifierData*) md;
1357                         // TODO: CollisionModifier should use pointcache 
1358                         // + have proper reset events before enabling this
1359                         writestruct(wd, DATA, "MVert", collmd->numverts, collmd->x);
1360                         writestruct(wd, DATA, "MVert", collmd->numverts, collmd->xnew);
1361                         writestruct(wd, DATA, "MFace", collmd->numfaces, collmd->mfaces);
1362                         */
1363                 }
1364                 else if (md->type==eModifierType_MeshDeform) {
1365                         MeshDeformModifierData *mmd = (MeshDeformModifierData*) md;
1366                         int size = mmd->dyngridsize;
1367
1368                         writestruct(wd, DATA, "MDefInfluence", mmd->totinfluence, mmd->bindinfluences);
1369                         writedata(wd, DATA, sizeof(int)*(mmd->totvert+1), mmd->bindoffsets);
1370                         writedata(wd, DATA, sizeof(float)*3*mmd->totcagevert,
1371                                 mmd->bindcagecos);
1372                         writestruct(wd, DATA, "MDefCell", size*size*size, mmd->dyngrid);
1373                         writestruct(wd, DATA, "MDefInfluence", mmd->totinfluence, mmd->dyninfluences);
1374                         writedata(wd, DATA, sizeof(int)*mmd->totvert, mmd->dynverts);
1375                 }
1376                 else if (md->type==eModifierType_Warp) {
1377                         WarpModifierData *tmd = (WarpModifierData*) md;
1378                         if(tmd->curfalloff) {
1379                                 write_curvemapping(wd, tmd->curfalloff);
1380                         }
1381                 }
1382                 else if (md->type==eModifierType_WeightVGEdit) {
1383                         WeightVGEditModifierData *wmd = (WeightVGEditModifierData*) md;
1384
1385                         if (wmd->cmap_curve)
1386                                 write_curvemapping(wd, wmd->cmap_curve);
1387                 }
1388         }
1389 }
1390
1391 static void write_objects(WriteData *wd, ListBase *idbase)
1392 {
1393         Object *ob;
1394         
1395         ob= idbase->first;
1396         while(ob) {
1397                 if(ob->id.us>0 || wd->current) {
1398                         /* write LibData */
1399                         writestruct(wd, ID_OB, "Object", 1, ob);
1400                         
1401                         /*Write ID Properties -- and copy this comment EXACTLY for easy finding
1402                           of library blocks that implement this.*/
1403                         if (ob->id.properties) IDP_WriteProperty(ob->id.properties, wd);
1404                         
1405                         if (ob->adt) write_animdata(wd, ob->adt);
1406                         
1407                         /* direct data */
1408                         writedata(wd, DATA, sizeof(void *)*ob->totcol, ob->mat);
1409                         writedata(wd, DATA, sizeof(char)*ob->totcol, ob->matbits);
1410                         /* write_effects(wd, &ob->effect); */ /* not used anymore */
1411                         write_properties(wd, &ob->prop);
1412                         write_sensors(wd, &ob->sensors);
1413                         write_controllers(wd, &ob->controllers);
1414                         write_actuators(wd, &ob->actuators);
1415
1416                         if (ob->type == OB_ARMATURE) {
1417                                 bArmature *arm = ob->data;
1418                                 if (arm && ob->pose && arm->act_bone) {
1419                                         BLI_strncpy(ob->pose->proxy_act_bone, arm->act_bone->name, sizeof(ob->pose->proxy_act_bone));
1420                                 }
1421                         }
1422
1423                         write_pose(wd, ob->pose);
1424                         write_defgroups(wd, &ob->defbase);
1425                         write_constraints(wd, &ob->constraints);
1426                         write_motionpath(wd, ob->mpath);
1427                         
1428                         writestruct(wd, DATA, "PartDeflect", 1, ob->pd);
1429                         writestruct(wd, DATA, "SoftBody", 1, ob->soft);
1430                         if(ob->soft) {
1431                                 write_pointcaches(wd, &ob->soft->ptcaches);
1432                                 writestruct(wd, DATA, "EffectorWeights", 1, ob->soft->effector_weights);
1433                         }
1434                         writestruct(wd, DATA, "BulletSoftBody", 1, ob->bsoft);
1435                         
1436                         write_particlesystems(wd, &ob->particlesystem);
1437                         write_modifiers(wd, &ob->modifiers);
1438                 }
1439                 ob= ob->id.next;
1440         }
1441
1442         /* flush helps the compression for undo-save */
1443         mywrite(wd, MYWRITE_FLUSH, 0);
1444 }
1445
1446
1447 static void write_vfonts(WriteData *wd, ListBase *idbase)
1448 {
1449         VFont *vf;
1450         PackedFile * pf;
1451
1452         vf= idbase->first;
1453         while(vf) {
1454                 if(vf->id.us>0 || wd->current) {
1455                         /* write LibData */
1456                         writestruct(wd, ID_VF, "VFont", 1, vf);
1457                         if (vf->id.properties) IDP_WriteProperty(vf->id.properties, wd);
1458
1459                         /* direct data */
1460
1461                         if (vf->packedfile) {
1462                                 pf = vf->packedfile;
1463                                 writestruct(wd, DATA, "PackedFile", 1, pf);
1464                                 writedata(wd, DATA, pf->size, pf->data);
1465                         }
1466                 }
1467
1468                 vf= vf->id.next;
1469         }
1470 }
1471
1472
1473 static void write_keys(WriteData *wd, ListBase *idbase)
1474 {
1475         Key *key;
1476         KeyBlock *kb;
1477
1478         key= idbase->first;
1479         while(key) {
1480                 if(key->id.us>0 || wd->current) {
1481                         /* write LibData */
1482                         writestruct(wd, ID_KE, "Key", 1, key);
1483                         if (key->id.properties) IDP_WriteProperty(key->id.properties, wd);
1484                         
1485                         if (key->adt) write_animdata(wd, key->adt);
1486                         
1487                         /* direct data */
1488                         kb= key->block.first;
1489                         while(kb) {
1490                                 writestruct(wd, DATA, "KeyBlock", 1, kb);
1491                                 if(kb->data) writedata(wd, DATA, kb->totelem*key->elemsize, kb->data);
1492                                 kb= kb->next;
1493                         }
1494                 }
1495
1496                 key= key->id.next;
1497         }
1498         /* flush helps the compression for undo-save */
1499         mywrite(wd, MYWRITE_FLUSH, 0);
1500 }
1501
1502 static void write_cameras(WriteData *wd, ListBase *idbase)
1503 {
1504         Camera *cam;
1505
1506         cam= idbase->first;
1507         while(cam) {
1508                 if(cam->id.us>0 || wd->current) {
1509                         /* write LibData */
1510                         writestruct(wd, ID_CA, "Camera", 1, cam);
1511                         if (cam->id.properties) IDP_WriteProperty(cam->id.properties, wd);
1512                         
1513                         if (cam->adt) write_animdata(wd, cam->adt);
1514                 }
1515
1516                 cam= cam->id.next;
1517         }
1518 }
1519
1520 static void write_mballs(WriteData *wd, ListBase *idbase)
1521 {
1522         MetaBall *mb;
1523         MetaElem *ml;
1524
1525         mb= idbase->first;
1526         while(mb) {
1527                 if(mb->id.us>0 || wd->current) {
1528                         /* write LibData */
1529                         writestruct(wd, ID_MB, "MetaBall", 1, mb);
1530                         if (mb->id.properties) IDP_WriteProperty(mb->id.properties, wd);
1531
1532                         /* direct data */
1533                         writedata(wd, DATA, sizeof(void *)*mb->totcol, mb->mat);
1534                         if (mb->adt) write_animdata(wd, mb->adt);
1535
1536                         ml= mb->elems.first;
1537                         while(ml) {
1538                                 writestruct(wd, DATA, "MetaElem", 1, ml);
1539                                 ml= ml->next;
1540                         }
1541                 }
1542                 mb= mb->id.next;
1543         }
1544 }
1545
1546 static int amount_of_chars(char *str)
1547 {
1548         // Since the data is saved as UTF-8 to the cu->str
1549         // The cu->len is not same as the strlen(cu->str)
1550         return strlen(str);
1551 }
1552
1553 static void write_curves(WriteData *wd, ListBase *idbase)
1554 {
1555         Curve *cu;
1556         Nurb *nu;
1557
1558         cu= idbase->first;
1559         while(cu) {
1560                 if(cu->id.us>0 || wd->current) {
1561                         /* write LibData */
1562                         writestruct(wd, ID_CU, "Curve", 1, cu);
1563                         
1564                         /* direct data */
1565                         writedata(wd, DATA, sizeof(void *)*cu->totcol, cu->mat);
1566                         if (cu->id.properties) IDP_WriteProperty(cu->id.properties, wd);
1567                         if (cu->adt) write_animdata(wd, cu->adt);
1568                         
1569                         if(cu->vfont) {
1570                                 writedata(wd, DATA, amount_of_chars(cu->str)+1, cu->str);
1571                                 writestruct(wd, DATA, "CharInfo", cu->len+1, cu->strinfo);
1572                                 writestruct(wd, DATA, "TextBox", cu->totbox, cu->tb);                           
1573                         }
1574                         else {
1575                                 /* is also the order of reading */
1576                                 nu= cu->nurb.first;
1577                                 while(nu) {
1578                                         writestruct(wd, DATA, "Nurb", 1, nu);
1579                                         nu= nu->next;
1580                                 }
1581                                 nu= cu->nurb.first;
1582                                 while(nu) {
1583                                         if(nu->type == CU_BEZIER)
1584                                                 writestruct(wd, DATA, "BezTriple", nu->pntsu, nu->bezt);
1585                                         else {
1586                                                 writestruct(wd, DATA, "BPoint", nu->pntsu*nu->pntsv, nu->bp);
1587                                                 if(nu->knotsu) writedata(wd, DATA, KNOTSU(nu)*sizeof(float), nu->knotsu);
1588                                                 if(nu->knotsv) writedata(wd, DATA, KNOTSV(nu)*sizeof(float), nu->knotsv);
1589                                         }
1590                                         nu= nu->next;
1591                                 }
1592                         }
1593                 }
1594                 cu= cu->id.next;
1595         }
1596
1597         /* flush helps the compression for undo-save */
1598         mywrite(wd, MYWRITE_FLUSH, 0);
1599 }
1600
1601 static void write_dverts(WriteData *wd, int count, MDeformVert *dvlist)
1602 {
1603         if (dvlist) {
1604                 int i;
1605                 
1606                 /* Write the dvert list */
1607                 writestruct(wd, DATA, "MDeformVert", count, dvlist);
1608                 
1609                 /* Write deformation data for each dvert */
1610                 for (i=0; i<count; i++) {
1611                         if (dvlist[i].dw)
1612                                 writestruct(wd, DATA, "MDeformWeight", dvlist[i].totweight, dvlist[i].dw);
1613                 }
1614         }
1615 }
1616
1617 static void write_mdisps(WriteData *wd, int count, MDisps *mdlist, int external)
1618 {
1619         if(mdlist) {
1620                 int i;
1621                 
1622                 writestruct(wd, DATA, "MDisps", count, mdlist);
1623                 if(!external) {
1624                         for(i = 0; i < count; ++i) {
1625                                 if(mdlist[i].disps)
1626                                         writedata(wd, DATA, sizeof(float)*3*mdlist[i].totdisp, mdlist[i].disps);
1627                         }
1628                 }
1629         }
1630 }
1631
1632 static void write_customdata(WriteData *wd, ID *id, int count, CustomData *data, int partial_type, int partial_count)
1633 {
1634         int i;
1635
1636         /* write external customdata (not for undo) */
1637         if(data->external && !wd->current)
1638                 CustomData_external_write(data, id, CD_MASK_MESH, count, 0);
1639
1640         writestruct(wd, DATA, "CustomDataLayer", data->maxlayer, data->layers);
1641
1642         for (i=0; i<data->totlayer; i++) {
1643                 CustomDataLayer *layer= &data->layers[i];
1644                 const char *structname;
1645                 int structnum, datasize;
1646
1647                 if (layer->type == CD_MDEFORMVERT) {
1648                         /* layer types that allocate own memory need special handling */
1649                         write_dverts(wd, count, layer->data);
1650                 }
1651                 else if (layer->type == CD_MDISPS) {
1652                         write_mdisps(wd, count, layer->data, layer->flag & CD_FLAG_EXTERNAL);
1653                 }
1654                 else {
1655                         CustomData_file_write_info(layer->type, &structname, &structnum);
1656                         if (structnum) {
1657                                 /* when using partial visibility, the MEdge and MFace layers
1658                                    are smaller than the original, so their type and count is
1659                                    passed to make this work */
1660                                 if (layer->type != partial_type) datasize= structnum*count;
1661                                 else datasize= structnum*partial_count;
1662
1663                                 writestruct(wd, DATA, structname, datasize, layer->data);
1664                         }
1665                         else
1666                                 printf("error: this CustomDataLayer must not be written to file\n");
1667                 }
1668         }
1669
1670         if(data->external)
1671                 writestruct(wd, DATA, "CustomDataExternal", 1, data->external);
1672 }
1673
1674 static void write_meshs(WriteData *wd, ListBase *idbase)
1675 {
1676         Mesh *mesh;
1677
1678         mesh= idbase->first;
1679         while(mesh) {
1680                 if(mesh->id.us>0 || wd->current) {
1681                         /* write LibData */
1682                         writestruct(wd, ID_ME, "Mesh", 1, mesh);
1683
1684                         /* direct data */
1685                         if (mesh->id.properties) IDP_WriteProperty(mesh->id.properties, wd);
1686                         if (mesh->adt) write_animdata(wd, mesh->adt);
1687
1688                         writedata(wd, DATA, sizeof(void *)*mesh->totcol, mesh->mat);
1689
1690                         if(mesh->pv) {
1691                                 write_customdata(wd, &mesh->id, mesh->pv->totvert, &mesh->vdata, -1, 0);
1692                                 write_customdata(wd, &mesh->id, mesh->pv->totedge, &mesh->edata,
1693                                         CD_MEDGE, mesh->totedge);
1694                                 write_customdata(wd, &mesh->id, mesh->pv->totface, &mesh->fdata,
1695                                         CD_MFACE, mesh->totface);
1696                         }
1697                         else {
1698                                 write_customdata(wd, &mesh->id, mesh->totvert, &mesh->vdata, -1, 0);
1699                                 write_customdata(wd, &mesh->id, mesh->totedge, &mesh->edata, -1, 0);
1700                                 write_customdata(wd, &mesh->id, mesh->totface, &mesh->fdata, -1, 0);
1701                         }
1702
1703                         /* PMV data */
1704                         if(mesh->pv) {
1705                                 writestruct(wd, DATA, "PartialVisibility", 1, mesh->pv);
1706                                 writedata(wd, DATA, sizeof(unsigned int)*mesh->pv->totvert, mesh->pv->vert_map);
1707                                 writedata(wd, DATA, sizeof(int)*mesh->pv->totedge, mesh->pv->edge_map);
1708                                 writestruct(wd, DATA, "MFace", mesh->pv->totface, mesh->pv->old_faces);
1709                                 writestruct(wd, DATA, "MEdge", mesh->pv->totedge, mesh->pv->old_edges);
1710                         }
1711                 }
1712                 mesh= mesh->id.next;
1713         }
1714 }
1715
1716 static void write_lattices(WriteData *wd, ListBase *idbase)
1717 {
1718         Lattice *lt;
1719         
1720         lt= idbase->first;
1721         while(lt) {
1722                 if(lt->id.us>0 || wd->current) {
1723                         /* write LibData */
1724                         writestruct(wd, ID_LT, "Lattice", 1, lt);
1725                         if (lt->id.properties) IDP_WriteProperty(lt->id.properties, wd);
1726                         
1727                         /* write animdata */
1728                         if (lt->adt) write_animdata(wd, lt->adt);
1729                         
1730                         /* direct data */
1731                         writestruct(wd, DATA, "BPoint", lt->pntsu*lt->pntsv*lt->pntsw, lt->def);
1732                         
1733                         write_dverts(wd, lt->pntsu*lt->pntsv*lt->pntsw, lt->dvert);
1734                         
1735                 }
1736                 lt= lt->id.next;
1737         }
1738 }
1739
1740 static void write_previews(WriteData *wd, PreviewImage *prv)
1741 {
1742         if (prv) {
1743                 short w = prv->w[1];
1744                 short h = prv->h[1];
1745                 unsigned int *rect = prv->rect[1];
1746                 /* don't write out large previews if not requested */
1747                 if (!(U.flag & USER_SAVE_PREVIEWS) ) {
1748                         prv->w[1] = 0;
1749                         prv->h[1] = 0;
1750                         prv->rect[1] = NULL;
1751                 }
1752                 writestruct(wd, DATA, "PreviewImage", 1, prv);
1753                 if (prv->rect[0]) writedata(wd, DATA, prv->w[0]*prv->h[0]*sizeof(unsigned int), prv->rect[0]);
1754                 if (prv->rect[1]) writedata(wd, DATA, prv->w[1]*prv->h[1]*sizeof(unsigned int), prv->rect[1]);
1755
1756                 /* restore preview, we still want to keep it in memory even if not saved to file */
1757                 if (!(U.flag & USER_SAVE_PREVIEWS) ) {
1758                         prv->w[1] = w;
1759                         prv->h[1] = h;
1760                         prv->rect[1] = rect;
1761                 }
1762         }
1763 }
1764
1765 static void write_images(WriteData *wd, ListBase *idbase)
1766 {
1767         Image *ima;
1768         PackedFile * pf;
1769
1770
1771         ima= idbase->first;
1772         while(ima) {
1773                 if(ima->id.us>0 || wd->current) {
1774                         /* write LibData */
1775                         writestruct(wd, ID_IM, "Image", 1, ima);
1776                         if (ima->id.properties) IDP_WriteProperty(ima->id.properties, wd);
1777
1778                         if (ima->packedfile) {
1779                                 pf = ima->packedfile;
1780                                 writestruct(wd, DATA, "PackedFile", 1, pf);
1781                                 writedata(wd, DATA, pf->size, pf->data);
1782                         }
1783
1784                         write_previews(wd, ima->preview);
1785                 }
1786                 ima= ima->id.next;
1787         }
1788         /* flush helps the compression for undo-save */
1789         mywrite(wd, MYWRITE_FLUSH, 0);
1790 }
1791
1792 static void write_textures(WriteData *wd, ListBase *idbase)
1793 {
1794         Tex *tex;
1795
1796         tex= idbase->first;
1797         while(tex) {
1798                 if(tex->id.us>0 || wd->current) {
1799                         /* write LibData */
1800                         writestruct(wd, ID_TE, "Tex", 1, tex);
1801                         if (tex->id.properties) IDP_WriteProperty(tex->id.properties, wd);
1802
1803                         if (tex->adt) write_animdata(wd, tex->adt);
1804
1805                         /* direct data */
1806                         if(tex->type == TEX_PLUGIN && tex->plugin) writestruct(wd, DATA, "PluginTex", 1, tex->plugin);
1807                         if(tex->coba) writestruct(wd, DATA, "ColorBand", 1, tex->coba);
1808                         if(tex->type == TEX_ENVMAP && tex->env) writestruct(wd, DATA, "EnvMap", 1, tex->env);
1809                         if(tex->type == TEX_POINTDENSITY && tex->pd) {
1810                                 writestruct(wd, DATA, "PointDensity", 1, tex->pd);
1811                                 if(tex->pd->coba) writestruct(wd, DATA, "ColorBand", 1, tex->pd->coba);
1812                                 if(tex->pd->falloff_curve) write_curvemapping(wd, tex->pd->falloff_curve);
1813                         }
1814                         if(tex->type == TEX_VOXELDATA) writestruct(wd, DATA, "VoxelData", 1, tex->vd);
1815                         
1816                         /* nodetree is integral part of texture, no libdata */
1817                         if(tex->nodetree) {
1818                                 writestruct(wd, DATA, "bNodeTree", 1, tex->nodetree);
1819                                 write_nodetree(wd, tex->nodetree);
1820                         }
1821                         
1822                         write_previews(wd, tex->preview);
1823                 }
1824                 tex= tex->id.next;
1825         }
1826
1827         /* flush helps the compression for undo-save */
1828         mywrite(wd, MYWRITE_FLUSH, 0);
1829 }
1830
1831 static void write_materials(WriteData *wd, ListBase *idbase)
1832 {
1833         Material *ma;
1834         int a;
1835
1836         ma= idbase->first;
1837         while(ma) {
1838                 if(ma->id.us>0 || wd->current) {
1839                         /* write LibData */
1840                         writestruct(wd, ID_MA, "Material", 1, ma);
1841                         
1842                         /*Write ID Properties -- and copy this comment EXACTLY for easy finding
1843                           of library blocks that implement this.*/
1844                         /*manually set head group property to IDP_GROUP, just in case it hadn't been
1845                           set yet :) */
1846                         if (ma->id.properties) IDP_WriteProperty(ma->id.properties, wd);
1847                         
1848                         if (ma->adt) write_animdata(wd, ma->adt);
1849
1850                         for(a=0; a<MAX_MTEX; a++) {
1851                                 if(ma->mtex[a]) writestruct(wd, DATA, "MTex", 1, ma->mtex[a]);
1852                         }
1853                         
1854                         if(ma->ramp_col) writestruct(wd, DATA, "ColorBand", 1, ma->ramp_col);
1855                         if(ma->ramp_spec) writestruct(wd, DATA, "ColorBand", 1, ma->ramp_spec);
1856                         
1857                         /* nodetree is integral part of material, no libdata */
1858                         if(ma->nodetree) {
1859                                 writestruct(wd, DATA, "bNodeTree", 1, ma->nodetree);
1860                                 write_nodetree(wd, ma->nodetree);
1861                         }
1862
1863                         write_previews(wd, ma->preview);                        
1864                 }
1865                 ma= ma->id.next;
1866         }
1867 }
1868
1869 static void write_worlds(WriteData *wd, ListBase *idbase)
1870 {
1871         World *wrld;
1872         int a;
1873
1874         wrld= idbase->first;
1875         while(wrld) {
1876                 if(wrld->id.us>0 || wd->current) {
1877                         /* write LibData */
1878                         writestruct(wd, ID_WO, "World", 1, wrld);
1879                         if (wrld->id.properties) IDP_WriteProperty(wrld->id.properties, wd);
1880                         
1881                         if (wrld->adt) write_animdata(wd, wrld->adt);
1882                         
1883                         for(a=0; a<MAX_MTEX; a++) {
1884                                 if(wrld->mtex[a]) writestruct(wd, DATA, "MTex", 1, wrld->mtex[a]);
1885                         }
1886                         
1887                         write_previews(wd, wrld->preview);
1888                 }
1889                 wrld= wrld->id.next;
1890         }
1891 }
1892
1893 static void write_lamps(WriteData *wd, ListBase *idbase)
1894 {
1895         Lamp *la;
1896         int a;
1897
1898         la= idbase->first;
1899         while(la) {
1900                 if(la->id.us>0 || wd->current) {
1901                         /* write LibData */
1902                         writestruct(wd, ID_LA, "Lamp", 1, la);
1903                         if (la->id.properties) IDP_WriteProperty(la->id.properties, wd);
1904                         
1905                         if (la->adt) write_animdata(wd, la->adt);
1906                         
1907                         /* direct data */
1908                         for(a=0; a<MAX_MTEX; a++) {
1909                                 if(la->mtex[a]) writestruct(wd, DATA, "MTex", 1, la->mtex[a]);
1910                         }
1911                         
1912                         if(la->curfalloff)
1913                                 write_curvemapping(wd, la->curfalloff); 
1914                         
1915                         write_previews(wd, la->preview);
1916                         
1917                 }
1918                 la= la->id.next;
1919         }
1920 }
1921
1922
1923 static void write_scenes(WriteData *wd, ListBase *scebase)
1924 {
1925         Scene *sce;
1926         Base *base;
1927         Editing *ed;
1928         Sequence *seq;
1929         MetaStack *ms;
1930         Strip *strip;
1931         TimeMarker *marker;
1932         TransformOrientation *ts;
1933         SceneRenderLayer *srl;
1934         ToolSettings *tos;
1935         
1936         sce= scebase->first;
1937         while(sce) {
1938                 /* write LibData */
1939                 writestruct(wd, ID_SCE, "Scene", 1, sce);
1940                 if (sce->id.properties) IDP_WriteProperty(sce->id.properties, wd);
1941                 
1942                 if (sce->adt) write_animdata(wd, sce->adt);
1943                 write_keyingsets(wd, &sce->keyingsets);
1944                 
1945                 /* direct data */
1946                 base= sce->base.first;
1947                 while(base) {
1948                         writestruct(wd, DATA, "Base", 1, base);
1949                         base= base->next;
1950                 }
1951                 
1952                 tos = sce->toolsettings;
1953                 writestruct(wd, DATA, "ToolSettings", 1, tos);
1954                 if(tos->vpaint) {
1955                         writestruct(wd, DATA, "VPaint", 1, tos->vpaint);
1956                 }
1957                 if(tos->wpaint) {
1958                         writestruct(wd, DATA, "VPaint", 1, tos->wpaint);
1959                 }
1960                 if(tos->sculpt) {
1961                         writestruct(wd, DATA, "Sculpt", 1, tos->sculpt);
1962                 }
1963
1964                 // write_paint(wd, &tos->imapaint.paint);
1965
1966                 ed= sce->ed;
1967                 if(ed) {
1968                         writestruct(wd, DATA, "Editing", 1, ed);
1969                         
1970                         /* reset write flags too */
1971                         
1972                         SEQ_BEGIN(ed, seq) {
1973                                 if(seq->strip) seq->strip->done= 0;
1974                                 writestruct(wd, DATA, "Sequence", 1, seq);
1975                         }
1976                         SEQ_END
1977                         
1978                         SEQ_BEGIN(ed, seq) {
1979                                 if(seq->strip && seq->strip->done==0) {
1980                                         /* write strip with 'done' at 0 because readfile */
1981                                         
1982                                         if(seq->plugin) writestruct(wd, DATA, "PluginSeq", 1, seq->plugin);
1983                                         if(seq->effectdata) {
1984                                                 switch(seq->type){
1985                                                 case SEQ_COLOR:
1986                                                         writestruct(wd, DATA, "SolidColorVars", 1, seq->effectdata);
1987                                                         break;
1988                                                 case SEQ_SPEED:
1989                                                         writestruct(wd, DATA, "SpeedControlVars", 1, seq->effectdata);
1990                                                         break;
1991                                                 case SEQ_WIPE:
1992                                                         writestruct(wd, DATA, "WipeVars", 1, seq->effectdata);
1993                                                         break;
1994                                                 case SEQ_GLOW:
1995                                                         writestruct(wd, DATA, "GlowVars", 1, seq->effectdata);
1996                                                         break;
1997                                                 case SEQ_TRANSFORM:
1998                                                         writestruct(wd, DATA, "TransformVars", 1, seq->effectdata);
1999                                                         break;
2000                                                 }
2001                                         }
2002                                         
2003                                         strip= seq->strip;
2004                                         writestruct(wd, DATA, "Strip", 1, strip);
2005                                         if(seq->flag & SEQ_USE_CROP && strip->crop) {
2006                                                 writestruct(wd, DATA, "StripCrop", 1, strip->crop);
2007                                         }
2008                                         if(seq->flag & SEQ_USE_TRANSFORM && strip->transform) {
2009                                                 writestruct(wd, DATA, "StripTransform", 1, strip->transform);
2010                                         }
2011                                         if(seq->flag & SEQ_USE_PROXY && strip->proxy) {
2012                                                 writestruct(wd, DATA, "StripProxy", 1, strip->proxy);
2013                                         }
2014                                         if(seq->flag & SEQ_USE_COLOR_BALANCE && strip->color_balance) {
2015                                                 writestruct(wd, DATA, "StripColorBalance", 1, strip->color_balance);
2016                                         }
2017                                         if(seq->type==SEQ_IMAGE)
2018                                                 writestruct(wd, DATA, "StripElem", MEM_allocN_len(strip->stripdata) / sizeof(struct StripElem), strip->stripdata);
2019                                         else if(seq->type==SEQ_MOVIE || seq->type==SEQ_RAM_SOUND || seq->type == SEQ_HD_SOUND)
2020                                                 writestruct(wd, DATA, "StripElem", 1, strip->stripdata);
2021                                         
2022                                         strip->done= 1;
2023                                 }
2024                         }
2025                         SEQ_END
2026                                 
2027                         /* new; meta stack too, even when its nasty restore code */
2028                         for(ms= ed->metastack.first; ms; ms= ms->next) {
2029                                 writestruct(wd, DATA, "MetaStack", 1, ms);
2030                         }
2031                 }
2032                 
2033                 if (sce->r.avicodecdata) {
2034                         writestruct(wd, DATA, "AviCodecData", 1, sce->r.avicodecdata);
2035                         if (sce->r.avicodecdata->lpFormat) writedata(wd, DATA, sce->r.avicodecdata->cbFormat, sce->r.avicodecdata->lpFormat);
2036                         if (sce->r.avicodecdata->lpParms) writedata(wd, DATA, sce->r.avicodecdata->cbParms, sce->r.avicodecdata->lpParms);
2037                 }
2038
2039                 if (sce->r.qtcodecdata) {
2040                         writestruct(wd, DATA, "QuicktimeCodecData", 1, sce->r.qtcodecdata);
2041                         if (sce->r.qtcodecdata->cdParms) writedata(wd, DATA, sce->r.qtcodecdata->cdSize, sce->r.qtcodecdata->cdParms);
2042                 }
2043                 if (sce->r.ffcodecdata.properties) {
2044                         IDP_WriteProperty(sce->r.ffcodecdata.properties, wd);
2045                 }
2046
2047                 /* writing dynamic list of TimeMarkers to the blend file */
2048                 for(marker= sce->markers.first; marker; marker= marker->next)
2049                         writestruct(wd, DATA, "TimeMarker", 1, marker);
2050                 
2051                 /* writing dynamic list of TransformOrientations to the blend file */
2052                 for(ts = sce->transform_spaces.first; ts; ts = ts->next)
2053                         writestruct(wd, DATA, "TransformOrientation", 1, ts);
2054                 
2055                 for(srl= sce->r.layers.first; srl; srl= srl->next)
2056                         writestruct(wd, DATA, "SceneRenderLayer", 1, srl);
2057                 
2058                 if(sce->nodetree) {
2059                         writestruct(wd, DATA, "bNodeTree", 1, sce->nodetree);
2060                         write_nodetree(wd, sce->nodetree);
2061                 }
2062                 
2063                 sce= sce->id.next;
2064         }
2065         /* flush helps the compression for undo-save */
2066         mywrite(wd, MYWRITE_FLUSH, 0);
2067 }
2068
2069 static void write_gpencils(WriteData *wd, ListBase *lb)
2070 {
2071         bGPdata *gpd;
2072         bGPDlayer *gpl;
2073         bGPDframe *gpf;
2074         bGPDstroke *gps;
2075         
2076         for (gpd= lb->first; gpd; gpd= gpd->id.next) {
2077                 if (gpd->id.us>0 || wd->current) {
2078                         /* write gpd data block to file */
2079                         writestruct(wd, ID_GD, "bGPdata", 1, gpd);
2080                         
2081                         /* write grease-pencil layers to file */
2082                         for (gpl= gpd->layers.first; gpl; gpl= gpl->next) {
2083                                 writestruct(wd, DATA, "bGPDlayer", 1, gpl);
2084                                 
2085                                 /* write this layer's frames to file */
2086                                 for (gpf= gpl->frames.first; gpf; gpf= gpf->next) {
2087                                         writestruct(wd, DATA, "bGPDframe", 1, gpf);
2088                                         
2089                                         /* write strokes */
2090                                         for (gps= gpf->strokes.first; gps; gps= gps->next) {
2091                                                 writestruct(wd, DATA, "bGPDstroke", 1, gps);
2092                                                 writestruct(wd, DATA, "bGPDspoint", gps->totpoints, gps->points);                               
2093                                         }
2094                                 }
2095                         }
2096                 }
2097         }
2098 }
2099
2100 static void write_windowmanagers(WriteData *wd, ListBase *lb)
2101 {
2102         wmWindowManager *wm;
2103         wmWindow *win;
2104         
2105         for(wm= lb->first; wm; wm= wm->id.next) {
2106                 writestruct(wd, ID_WM, "wmWindowManager", 1, wm);
2107                 
2108                 for(win= wm->windows.first; win; win= win->next)
2109                         writestruct(wd, DATA, "wmWindow", 1, win);
2110         }
2111 }
2112
2113 static void write_region(WriteData *wd, ARegion *ar, int spacetype)
2114 {       
2115         writestruct(wd, DATA, "ARegion", 1, ar);
2116         
2117         if(ar->regiondata) {
2118                 switch(spacetype) {
2119                         case SPACE_VIEW3D:
2120                                 if(ar->regiontype==RGN_TYPE_WINDOW) {
2121                                         RegionView3D *rv3d= ar->regiondata;
2122                                         writestruct(wd, DATA, "RegionView3D", 1, rv3d);
2123                                         
2124                                         if(rv3d->localvd)
2125                                                 writestruct(wd, DATA, "RegionView3D", 1, rv3d->localvd);
2126                                         if(rv3d->clipbb) 
2127                                                 writestruct(wd, DATA, "BoundBox", 1, rv3d->clipbb);
2128
2129                                 }
2130                                 else
2131                                         printf("regiondata write missing!\n");
2132                                 break;
2133                         default:
2134                                 printf("regiondata write missing!\n");
2135                 }
2136         }
2137 }
2138
2139 static void write_screens(WriteData *wd, ListBase *scrbase)
2140 {
2141         bScreen *sc;
2142         ScrArea *sa;
2143         ScrVert *sv;
2144         ScrEdge *se;
2145
2146         sc= scrbase->first;
2147         while(sc) {
2148                 
2149                 /* write LibData */
2150                 /* in 2.50+ files, the file identifier for screens is patched, forward compatibility */
2151                 writestruct(wd, ID_SCRN, "Screen", 1, sc);
2152                 if (sc->id.properties) 
2153                         IDP_WriteProperty(sc->id.properties, wd);
2154                 
2155                 /* direct data */
2156                 for(sv= sc->vertbase.first; sv; sv= sv->next)
2157                         writestruct(wd, DATA, "ScrVert", 1, sv);
2158                 
2159                 for(se= sc->edgebase.first; se; se= se->next) 
2160                         writestruct(wd, DATA, "ScrEdge", 1, se);
2161                 
2162                 for(sa= sc->areabase.first; sa; sa= sa->next) {
2163                         SpaceLink *sl;
2164                         Panel *pa;
2165                         ARegion *ar;
2166                         
2167                         writestruct(wd, DATA, "ScrArea", 1, sa);
2168                         
2169                         for(ar= sa->regionbase.first; ar; ar= ar->next) {
2170                                 write_region(wd, ar, sa->spacetype);
2171                                 
2172                                 for(pa= ar->panels.first; pa; pa= pa->next)
2173                                         writestruct(wd, DATA, "Panel", 1, pa);
2174                         }
2175                         
2176                         sl= sa->spacedata.first;
2177                         while(sl) {
2178                                 for(ar= sl->regionbase.first; ar; ar= ar->next)
2179                                         write_region(wd, ar, sl->spacetype);
2180                                 
2181                                 if(sl->spacetype==SPACE_VIEW3D) {
2182                                         View3D *v3d= (View3D *) sl;
2183                                         BGpic *bgpic;
2184                                         writestruct(wd, DATA, "View3D", 1, v3d);
2185                                         for (bgpic= v3d->bgpicbase.first; bgpic; bgpic= bgpic->next)
2186                                                 writestruct(wd, DATA, "BGpic", 1, bgpic);
2187                                         if(v3d->localvd) writestruct(wd, DATA, "View3D", 1, v3d->localvd);
2188                                 }
2189                                 else if(sl->spacetype==SPACE_IPO) {
2190                                         SpaceIpo *sipo= (SpaceIpo *)sl;
2191                                         ListBase tmpGhosts = sipo->ghostCurves;
2192                                         
2193                                         /* temporarily disable ghost curves when saving */
2194                                         sipo->ghostCurves.first= sipo->ghostCurves.last= NULL;
2195                                         
2196                                         writestruct(wd, DATA, "SpaceIpo", 1, sl);
2197                                         if(sipo->ads) writestruct(wd, DATA, "bDopeSheet", 1, sipo->ads);
2198                                         
2199                                         /* reenable ghost curves */
2200                                         sipo->ghostCurves= tmpGhosts;
2201                                 }
2202                                 else if(sl->spacetype==SPACE_BUTS) {
2203                                         writestruct(wd, DATA, "SpaceButs", 1, sl);
2204                                 }
2205                                 else if(sl->spacetype==SPACE_FILE) {
2206                                         SpaceFile *sfile= (SpaceFile *)sl;
2207
2208                                         writestruct(wd, DATA, "SpaceFile", 1, sl);
2209                                         if(sfile->params)
2210                                                 writestruct(wd, DATA, "FileSelectParams", 1, sfile->params);
2211                                 }
2212                                 else if(sl->spacetype==SPACE_SEQ) {
2213                                         writestruct(wd, DATA, "SpaceSeq", 1, sl);
2214                                 }
2215                                 else if(sl->spacetype==SPACE_OUTLINER) {
2216                                         SpaceOops *so= (SpaceOops *)sl;
2217                                         
2218                                         writestruct(wd, DATA, "SpaceOops", 1, so);
2219
2220                                         /* outliner */
2221                                         if(so->treestore) {
2222                                                 writestruct(wd, DATA, "TreeStore", 1, so->treestore);
2223                                                 if(so->treestore->data)
2224                                                         writestruct(wd, DATA, "TreeStoreElem", so->treestore->usedelem, so->treestore->data);
2225                                         }
2226                                 }
2227                                 else if(sl->spacetype==SPACE_IMAGE) {
2228                                         SpaceImage *sima= (SpaceImage *)sl;
2229                                         
2230                                         writestruct(wd, DATA, "SpaceImage", 1, sl);
2231                                         if(sima->cumap)
2232                                                 write_curvemapping(wd, sima->cumap);
2233                                 }
2234                                 else if(sl->spacetype==SPACE_IMASEL) {
2235                                         // XXX: depreceated... do we still want to keep this?
2236                                         writestruct(wd, DATA, "SpaceImaSel", 1, sl);
2237                                 }
2238                                 else if(sl->spacetype==SPACE_TEXT) {
2239                                         writestruct(wd, DATA, "SpaceText", 1, sl);
2240                                 }
2241                                 else if(sl->spacetype==SPACE_SCRIPT) {
2242                                         SpaceScript *scr = (SpaceScript*)sl;
2243                                         scr->but_refs = NULL;
2244                                         writestruct(wd, DATA, "SpaceScript", 1, sl);
2245                                 }
2246                                 else if(sl->spacetype==SPACE_ACTION) {
2247                                         writestruct(wd, DATA, "SpaceAction", 1, sl);
2248                                 }
2249                                 else if(sl->spacetype==SPACE_SOUND) {
2250                                         writestruct(wd, DATA, "SpaceSound", 1, sl);
2251                                 }
2252                                 else if(sl->spacetype==SPACE_NLA){
2253                                         SpaceNla *snla= (SpaceNla *)sl;
2254                                         
2255                                         writestruct(wd, DATA, "SpaceNla", 1, snla);
2256                                         if(snla->ads) writestruct(wd, DATA, "bDopeSheet", 1, snla->ads);
2257                                 }
2258                                 else if(sl->spacetype==SPACE_TIME){
2259                                         writestruct(wd, DATA, "SpaceTime", 1, sl);
2260                                 }
2261                                 else if(sl->spacetype==SPACE_NODE){
2262                                         writestruct(wd, DATA, "SpaceNode", 1, sl);
2263                                 }
2264                                 else if(sl->spacetype==SPACE_LOGIC){
2265                                         writestruct(wd, DATA, "SpaceLogic", 1, sl);
2266                                 }
2267                                 else if(sl->spacetype==SPACE_CONSOLE) {
2268                                         SpaceConsole *con = (SpaceConsole*)sl;
2269                                         ConsoleLine *cl;
2270
2271                                         for (cl=con->history.first; cl; cl=cl->next) {
2272                                                 /* 'len_alloc' is invalid on write, set from 'len' on read */
2273                                                 writestruct(wd, DATA, "ConsoleLine", 1, cl);
2274                                                 writedata(wd, DATA, cl->len+1, cl->line);
2275                                         }
2276                                         writestruct(wd, DATA, "SpaceConsole", 1, sl);
2277
2278                                 }
2279                                 else if(sl->spacetype==SPACE_USERPREF) {
2280                                         writestruct(wd, DATA, "SpaceUserPref", 1, sl);
2281                                 }
2282
2283                                 sl= sl->next;
2284                         }
2285                 }
2286
2287                 sc= sc->id.next;
2288         }
2289 }
2290
2291 static void write_libraries(WriteData *wd, Main *main)
2292 {
2293         ListBase *lbarray[MAX_LIBARRAY];
2294         ID *id;
2295         int a, tot, foundone;
2296
2297         for(; main; main= main->next) {
2298
2299                 a=tot= set_listbasepointers(main, lbarray);
2300
2301                 /* test: is lib being used */
2302                 foundone= 0;
2303                 while(tot--) {
2304                         for(id= lbarray[tot]->first; id; id= id->next) {
2305                                 if(id->us>0 && (id->flag & LIB_EXTERN)) {
2306                                         foundone= 1;
2307                                         break;
2308                                 }
2309                         }
2310                         if(foundone) break;
2311                 }
2312
2313                 if(foundone) {
2314                         writestruct(wd, ID_LI, "Library", 1, main->curlib);
2315
2316                         while(a--) {
2317                                 for(id= lbarray[a]->first; id; id= id->next) {
2318                                         if(id->us>0 && (id->flag & LIB_EXTERN)) {
2319                                                 writestruct(wd, ID_ID, "ID", 1, id);
2320                                         }
2321                                 }
2322                         }
2323                 }
2324         }
2325 }
2326
2327 static void write_bone(WriteData *wd, Bone* bone)
2328 {
2329         Bone*   cbone;
2330
2331         // PATCH for upward compatibility after 2.37+ armature recode
2332         bone->size[0]= bone->size[1]= bone->size[2]= 1.0f;
2333                 
2334         // Write this bone
2335         writestruct(wd, DATA, "Bone", 1, bone);
2336
2337         /* Write ID Properties -- and copy this comment EXACTLY for easy finding
2338          of library blocks that implement this.*/
2339         if (bone->prop)
2340                 IDP_WriteProperty(bone->prop, wd);
2341         
2342         // Write Children
2343         cbone= bone->childbase.first;
2344         while(cbone) {
2345                 write_bone(wd, cbone);
2346                 cbone= cbone->next;
2347         }
2348 }
2349
2350 static void write_armatures(WriteData *wd, ListBase *idbase)
2351 {
2352         bArmature       *arm;
2353         Bone            *bone;
2354
2355         arm=idbase->first;
2356         while (arm) {
2357                 if (arm->id.us>0 || wd->current) {
2358                         writestruct(wd, ID_AR, "bArmature", 1, arm);
2359                         if (arm->id.properties) IDP_WriteProperty(arm->id.properties, wd);
2360
2361                         if (arm->adt) write_animdata(wd, arm->adt);
2362
2363                         /* Direct data */
2364                         bone= arm->bonebase.first;
2365                         while(bone) {
2366                                 write_bone(wd, bone);
2367                                 bone=bone->next;
2368                         }
2369                 }
2370                 arm=arm->id.next;
2371         }
2372
2373         /* flush helps the compression for undo-save */
2374         mywrite(wd, MYWRITE_FLUSH, 0);
2375 }
2376
2377 static void write_texts(WriteData *wd, ListBase *idbase)
2378 {
2379         Text *text;
2380         TextLine *tmp;
2381         TextMarker *mrk;
2382
2383         text= idbase->first;
2384         while(text) {
2385                 if ( (text->flags & TXT_ISMEM) && (text->flags & TXT_ISEXT)) text->flags &= ~TXT_ISEXT;
2386
2387                 /* write LibData */
2388                 writestruct(wd, ID_TXT, "Text", 1, text);
2389                 if(text->name) writedata(wd, DATA, strlen(text->name)+1, text->name);
2390                 if (text->id.properties) IDP_WriteProperty(text->id.properties, wd);
2391
2392                 if(!(text->flags & TXT_ISEXT)) {
2393                         /* now write the text data, in two steps for optimization in the readfunction */
2394                         tmp= text->lines.first;
2395                         while (tmp) {
2396                                 writestruct(wd, DATA, "TextLine", 1, tmp);
2397                                 tmp= tmp->next;
2398                         }
2399
2400                         tmp= text->lines.first;
2401                         while (tmp) {
2402                                 writedata(wd, DATA, tmp->len+1, tmp->line);
2403                                 tmp= tmp->next;
2404                         }
2405
2406                         /* write markers */
2407                         mrk= text->markers.first;
2408                         while (mrk) {
2409                                 writestruct(wd, DATA, "TextMarker", 1, mrk);
2410                                 mrk= mrk->next;
2411                         }
2412                 }
2413
2414
2415                 text= text->id.next;
2416         }
2417
2418         /* flush helps the compression for undo-save */
2419         mywrite(wd, MYWRITE_FLUSH, 0);
2420 }
2421
2422 static void write_speakers(WriteData *wd, ListBase *idbase)
2423 {
2424         Speaker *spk;
2425
2426         spk= idbase->first;
2427         while(spk) {
2428                 if(spk->id.us>0 || wd->current) {
2429                         /* write LibData */
2430                         writestruct(wd, ID_SPK, "Speaker", 1, spk);
2431                         if (spk->id.properties) IDP_WriteProperty(spk->id.properties, wd);
2432
2433                         if (spk->adt) write_animdata(wd, spk->adt);
2434                 }
2435                 spk= spk->id.next;
2436         }
2437 }
2438
2439 static void write_sounds(WriteData *wd, ListBase *idbase)
2440 {
2441         bSound *sound;
2442
2443         PackedFile * pf;
2444
2445         sound= idbase->first;
2446         while(sound) {
2447                 if(sound->id.us>0 || wd->current) {
2448                         /* write LibData */
2449                         writestruct(wd, ID_SO, "bSound", 1, sound);
2450                         if (sound->id.properties) IDP_WriteProperty(sound->id.properties, wd);
2451
2452                         if (sound->packedfile) {
2453                                 pf = sound->packedfile;
2454                                 writestruct(wd, DATA, "PackedFile", 1, pf);
2455                                 writedata(wd, DATA, pf->size, pf->data);
2456                         }
2457                 }
2458                 sound= sound->id.next;
2459         }
2460
2461         /* flush helps the compression for undo-save */
2462         mywrite(wd, MYWRITE_FLUSH, 0);
2463 }
2464
2465 static void write_groups(WriteData *wd, ListBase *idbase)
2466 {
2467         Group *group;
2468         GroupObject *go;
2469
2470         for(group= idbase->first; group; group= group->id.next) {
2471                 if(group->id.us>0 || wd->current) {
2472                         /* write LibData */
2473                         writestruct(wd, ID_GR, "Group", 1, group);
2474                         if (group->id.properties) IDP_WriteProperty(group->id.properties, wd);
2475
2476                         go= group->gobject.first;
2477                         while(go) {
2478                                 writestruct(wd, DATA, "GroupObject", 1, go);
2479                                 go= go->next;
2480                         }
2481                 }
2482         }
2483 }
2484
2485 static void write_nodetrees(WriteData *wd, ListBase *idbase)
2486 {
2487         bNodeTree *ntree;
2488         
2489         for(ntree=idbase->first; ntree; ntree= ntree->id.next) {
2490                 if (ntree->id.us>0 || wd->current) {
2491                         writestruct(wd, ID_NT, "bNodeTree", 1, ntree);
2492                         write_nodetree(wd, ntree);
2493                         
2494                         if (ntree->id.properties) IDP_WriteProperty(ntree->id.properties, wd);
2495                         
2496                         if (ntree->adt) write_animdata(wd, ntree->adt);
2497                 }
2498         }
2499 }
2500
2501 static void write_brushes(WriteData *wd, ListBase *idbase)
2502 {
2503         Brush *brush;
2504         
2505         for(brush=idbase->first; brush; brush= brush->id.next) {
2506                 if(brush->id.us>0 || wd->current) {
2507                         writestruct(wd, ID_BR, "Brush", 1, brush);
2508                         if (brush->id.properties) IDP_WriteProperty(brush->id.properties, wd);
2509                         
2510                         writestruct(wd, DATA, "MTex", 1, &brush->mtex);
2511                         
2512                         if(brush->curve)
2513                                 write_curvemapping(wd, brush->curve);
2514                 }
2515         }
2516 }
2517
2518 static void write_scripts(WriteData *wd, ListBase *idbase)
2519 {
2520         Script *script;
2521         
2522         for(script=idbase->first; script; script= script->id.next) {
2523                 if(script->id.us>0 || wd->current) {
2524                         writestruct(wd, ID_SCRIPT, "Script", 1, script);
2525                         if (script->id.properties) IDP_WriteProperty(script->id.properties, wd);
2526                 }
2527         }
2528 }
2529
2530 /* context is usually defined by WM, two cases where no WM is available:
2531  * - for forward compatibility, curscreen has to be saved
2532  * - for undofile, curscene needs to be saved */
2533 static void write_global(WriteData *wd, int fileflags, Main *mainvar)
2534 {
2535         FileGlobal fg;
2536         bScreen *screen;
2537         char subvstr[8];
2538         
2539         /* prevent mem checkers from complaining */
2540         fg.pads= fg.pad= 0;
2541         memset(fg.filename, 0, sizeof(fg.filename));
2542
2543         current_screen_compat(mainvar, &screen);
2544
2545         /* XXX still remap G */
2546         fg.curscreen= screen;
2547         fg.curscene= screen->scene;
2548         fg.displaymode= G.displaymode;
2549         fg.winpos= G.winpos;
2550         fg.fileflags= (fileflags & ~(G_FILE_NO_UI|G_FILE_RELATIVE_REMAP));      // prevent to save this, is not good convention, and feature with concerns...
2551         fg.globalf= G.f;
2552         BLI_strncpy(fg.filename, mainvar->name, sizeof(fg.filename));
2553
2554         sprintf(subvstr, "%4d", BLENDER_SUBVERSION);
2555         memcpy(fg.subvstr, subvstr, 4);
2556         
2557         fg.subversion= BLENDER_SUBVERSION;
2558         fg.minversion= BLENDER_MINVERSION;
2559         fg.minsubversion= BLENDER_MINSUBVERSION;
2560 #ifdef WITH_BUILDINFO
2561         {
2562                 extern char build_rev[];
2563                 fg.revision= atoi(build_rev);
2564         }
2565 #else
2566         fg.revision= 0;
2567 #endif
2568         writestruct(wd, GLOB, "FileGlobal", 1, &fg);
2569 }
2570
2571 /* preview image, first 2 values are width and height
2572  * second are an RGBA image (unsigned char)
2573  * note, this uses 'TEST' since new types will segfault on file load for older blender versions.
2574  */
2575 static void write_thumb(WriteData *wd, int *img)
2576 {
2577         if(img)
2578                 writedata(wd, TEST, (2 + img[0] * img[1]) * sizeof(int), img);
2579 }
2580
2581 /* if MemFile * there's filesave to memory */
2582 static int write_file_handle(Main *mainvar, int handle, MemFile *compare, MemFile *current, 
2583                                                          int write_user_block, int write_flags, int *thumb)
2584 {
2585         BHead bhead;
2586         ListBase mainlist;
2587         char buf[16];
2588         WriteData *wd;
2589
2590         blo_split_main(&mainlist, mainvar);
2591
2592         wd= bgnwrite(handle, compare, current);
2593         
2594         sprintf(buf, "BLENDER%c%c%.3d", (sizeof(void*)==8)?'-':'_', (ENDIAN_ORDER==B_ENDIAN)?'V':'v', BLENDER_VERSION);
2595         mywrite(wd, buf, 12);
2596
2597         write_renderinfo(wd, mainvar);
2598         write_thumb(wd, thumb);
2599         write_global(wd, write_flags, mainvar);
2600
2601         /* no UI save in undo */
2602         if(current==NULL) {
2603                 write_windowmanagers(wd, &mainvar->wm);
2604                 write_screens  (wd, &mainvar->screen);
2605         }
2606         write_scenes   (wd, &mainvar->scene);
2607         write_curves   (wd, &mainvar->curve);
2608         write_mballs   (wd, &mainvar->mball);
2609         write_images   (wd, &mainvar->image);
2610         write_cameras  (wd, &mainvar->camera);
2611         write_lamps    (wd, &mainvar->lamp);
2612         write_lattices (wd, &mainvar->latt);
2613         write_vfonts   (wd, &mainvar->vfont);
2614         write_keys     (wd, &mainvar->key);
2615         write_worlds   (wd, &mainvar->world);
2616         write_texts    (wd, &mainvar->text);
2617         write_speakers (wd, &mainvar->speaker);
2618         write_sounds   (wd, &mainvar->sound);
2619         write_groups   (wd, &mainvar->group);
2620         write_armatures(wd, &mainvar->armature);
2621         write_actions  (wd, &mainvar->action);
2622         write_objects  (wd, &mainvar->object);
2623         write_materials(wd, &mainvar->mat);
2624         write_textures (wd, &mainvar->tex);
2625         write_meshs    (wd, &mainvar->mesh);
2626         write_particlesettings(wd, &mainvar->particle);
2627         write_nodetrees(wd, &mainvar->nodetree);
2628         write_brushes  (wd, &mainvar->brush);
2629         write_scripts  (wd, &mainvar->script);
2630         write_gpencils (wd, &mainvar->gpencil);
2631         write_libraries(wd,  mainvar->next);
2632
2633         if (write_user_block) {
2634                 write_userdef(wd);
2635         }
2636                                                         
2637         /* dna as last, because (to be implemented) test for which structs are written */
2638         writedata(wd, DNA1, wd->sdna->datalen, wd->sdna->data);
2639
2640         /* end of file */
2641         memset(&bhead, 0, sizeof(BHead));
2642         bhead.code= ENDB;
2643         mywrite(wd, &bhead, sizeof(BHead));
2644
2645         blo_join_main(&mainlist);
2646
2647         return endwrite(wd);
2648 }
2649
2650 /* do reverse file history: .blend1 -> .blend2, .blend -> .blend1 */
2651 /* return: success(0), failure(1) */
2652 static int do_history(const char *name, ReportList *reports)
2653 {
2654         char tempname1[FILE_MAXDIR+FILE_MAXFILE], tempname2[FILE_MAXDIR+FILE_MAXFILE];
2655         int hisnr= U.versions;
2656         
2657         if(U.versions==0) return 0;
2658         if(strlen(name)<2) {
2659                 BKE_report(reports, RPT_ERROR, "Unable to make version backup: filename too short");
2660                 return 1;
2661         }
2662                 
2663         while(hisnr > 1) {
2664                 BLI_snprintf(tempname1, sizeof(tempname1), "%s%d", name, hisnr-1);
2665                 BLI_snprintf(tempname2, sizeof(tempname2), "%s%d", name, hisnr);
2666         
2667                 if(BLI_rename(tempname1, tempname2)) {
2668                         BKE_report(reports, RPT_ERROR, "Unable to make version backup");
2669                         return 1;
2670                 }       
2671                 hisnr--;
2672         }
2673
2674         /* is needed when hisnr==1 */
2675         BLI_snprintf(tempname1, sizeof(tempname1), "%s%d", name, hisnr);
2676
2677         if(BLI_rename(name, tempname1)) {
2678                 BKE_report(reports, RPT_ERROR, "Unable to make version backup");
2679                 return 1;
2680         }
2681
2682         return 0;
2683 }
2684
2685 /* return: success (1) */
2686 int BLO_write_file(Main *mainvar, const char *filepath, int write_flags, ReportList *reports, int *thumb)
2687 {
2688         char userfilename[FILE_MAXDIR+FILE_MAXFILE];
2689         char tempname[FILE_MAXDIR+FILE_MAXFILE+1];
2690         int file, err, write_user_block;
2691
2692         /* open temporary file, so we preserve the original in case we crash */
2693         BLI_snprintf(tempname, sizeof(tempname), "%s@", filepath);
2694
2695         file = open(tempname,O_BINARY+O_WRONLY+O_CREAT+O_TRUNC, 0666);
2696         if(file == -1) {
2697                 BKE_reportf(reports, RPT_ERROR, "Can't open file %s for writing: %s.", tempname, strerror(errno));
2698                 return 0;
2699         }
2700
2701         /* remapping of relative paths to new file location */
2702         if(write_flags & G_FILE_RELATIVE_REMAP) {
2703                 char dir1[FILE_MAXDIR+FILE_MAXFILE];
2704                 char dir2[FILE_MAXDIR+FILE_MAXFILE];
2705                 BLI_split_dir_part(filepath, dir1, sizeof(dir1));
2706                 BLI_split_dir_part(mainvar->name, dir2, sizeof(dir2));
2707
2708                 /* just incase there is some subtle difference */
2709                 BLI_cleanup_dir(mainvar->name, dir1);
2710                 BLI_cleanup_dir(mainvar->name, dir2);
2711
2712                 if(BLI_path_cmp(dir1, dir2)==0) {
2713                         write_flags &= ~G_FILE_RELATIVE_REMAP;
2714                 }
2715                 else {
2716                         if(G.relbase_valid) {
2717                                 /* blend may not have been saved before. Tn this case
2718                                  * we should not have any relative paths, but if there
2719                                  * is somehow, an invalid or empty G.main->name it will
2720                                  * print an error, dont try make the absolute in this case. */
2721                                 makeFilesAbsolute(mainvar, G.main->name, NULL);
2722                         }
2723                 }
2724         }
2725
2726         BLI_make_file_string(G.main->name, userfilename, BLI_get_folder_create(BLENDER_USER_CONFIG, NULL), BLENDER_STARTUP_FILE);
2727         write_user_block= (BLI_path_cmp(filepath, userfilename) == 0);
2728
2729         if(write_flags & G_FILE_RELATIVE_REMAP)
2730                 makeFilesRelative(mainvar, filepath, NULL); /* note, making relative to something OTHER then G.main->name */
2731
2732         /* actual file writing */
2733         err= write_file_handle(mainvar, file, NULL,NULL, write_user_block, write_flags, thumb);
2734         close(file);
2735
2736         if (err) {
2737                 BKE_report(reports, RPT_ERROR, strerror(errno));
2738                 remove(tempname);
2739
2740                 return 0;
2741         }
2742
2743         /* file save to temporary file was successful */
2744         /* now do reverse file history (move .blend1 -> .blend2, .blend -> .blend1) */
2745         if (write_flags & G_FILE_HISTORY) { 
2746                 int err_hist = do_history(filepath, reports);
2747                 if (err_hist) {
2748                         BKE_report(reports, RPT_ERROR, "Version backup failed. File saved with @");
2749                         return 0;
2750                 }
2751         }
2752
2753         if(write_flags & G_FILE_COMPRESS) {
2754                 /* compressed files have the same ending as regular files... only from 2.4!!! */
2755                 char gzname[FILE_MAXDIR+FILE_MAXFILE+4];
2756                 int ret;
2757
2758                 /* first write compressed to separate @.gz */
2759                 BLI_snprintf(gzname, sizeof(gzname), "%s@.gz", filepath);
2760                 ret = BLI_file_gzip(tempname, gzname);
2761                 
2762                 if(0==ret) {
2763                         /* now rename to real file name, and delete temp @ file too */
2764                         if(BLI_rename(gzname, filepath) != 0) {
2765                                 BKE_report(reports, RPT_ERROR, "Can't change old file. File saved with @.");
2766                                 return 0;
2767                         }
2768
2769                         BLI_delete(tempname, 0, 0);
2770                 }
2771                 else if(-1==ret) {
2772                         BKE_report(reports, RPT_ERROR, "Failed opening .gz file.");
2773                         return 0;
2774                 }
2775                 else if(-2==ret) {
2776                         BKE_report(reports, RPT_ERROR, "Failed opening .blend file for compression.");
2777                         return 0;
2778                 }
2779         }
2780         else if(BLI_rename(tempname, filepath) != 0) {
2781                 BKE_report(reports, RPT_ERROR, "Can't change old file. File saved with @");
2782                 return 0;
2783         }
2784
2785         return 1;
2786 }
2787
2788 /* return: success (1) */
2789 int BLO_write_file_mem(Main *mainvar, MemFile *compare, MemFile *current, int write_flags)
2790 {
2791         int err;
2792
2793         err= write_file_handle(mainvar, 0, compare, current, 0, write_flags, NULL);
2794         
2795         if(err==0) return 1;
2796         return 0;
2797 }